diff --git a/src/RTEX/Objects/Program/Instructions/ArrayGet.php b/src/RTEX/Objects/Program/Instructions/ArrayGet.php
new file mode 100644
index 0000000..21622e6
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/ArrayGet.php
@@ -0,0 +1,150 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class ArrayGet implements InstructionInterface
+    {
+        /**
+         * The array to read from
+         *
+         * @var mixed
+         */
+        private $Array;
+
+        /**
+         * The query to use to read from the array
+         *
+         * @var mixed
+         */
+        private $Value;
+
+        /**
+         * The name of the variable to set
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::ArrayGet;
+        }
+
+
+        /**
+         * @return mixed
+         * @noinspection PhpMissingReturnTypeInspection
+         * @noinspection PhpUnused
+         */
+        public function getArray()
+        {
+            return $this->Array;
+        }
+
+        /**
+         * @param mixed $variable
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         * @noinspection PhpMissingParamTypeInspection
+         */
+        public function setArray($variable): void
+        {
+            $this->Array = InstructionBuilder::fromRaw($variable);
+        }
+
+        /**
+         * @return mixed
+         * @noinspection PhpMissingReturnTypeInspection
+         */
+        public function getValue()
+        {
+            return $this->Value;
+        }
+
+        /**
+         * @param mixed $value
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         * @noinspection PhpMissingParamTypeInspection
+         */
+        public function setValue($value): void
+        {
+            $this->Value = InstructionBuilder::fromRaw($value);
+        }
+
+        /**
+         * Returns an array representation of the object
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'array' => $this->Array,
+                'value' => $this->Value
+            ]);
+        }
+
+        /**
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setArray($data['array'] ?? null);
+            $instruction->setValue($data['value'] ?? null);
+
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return void
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine)
+        {
+
+            $queryParts = explode('.', $engine->eval($this->Value));
+            $value = $engine->getEnvironment()->getRuntimeVariable($engine->eval($this->Array));
+
+            foreach ($queryParts as $queryPart)
+            {
+                if (is_array($value) && array_key_exists($queryPart, $value))
+                {
+                    $value = $value[$queryPart];
+                }
+                else
+                {
+                    return null;
+                }
+            }
+
+            return $value;
+        }
+
+        /**
+         * @inheritDoc
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (array: %s, value: %s)',
+                Utilities::entityToString($this->Array),
+                Utilities::entityToString($this->Value)
+            );
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Divide.php b/src/RTEX/Objects/Program/Instructions/Divide.php
new file mode 100644
index 0000000..9ec79ba
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Divide.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Divide implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Divide;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) / intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s/%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Equals.php b/src/RTEX/Objects/Program/Instructions/Equals.php
new file mode 100644
index 0000000..afc0f7e
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Equals.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Equals implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Equals;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return bool
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): bool
+        {
+            return (intval($engine->eval($this->A)) == intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s==%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/GetVariable.php b/src/RTEX/Objects/Program/Instructions/GetVariable.php
index e7b3e0c..f7583ca 100644
--- a/src/RTEX/Objects/Program/Instructions/GetVariable.php
+++ b/src/RTEX/Objects/Program/Instructions/GetVariable.php
@@ -1,10 +1,14 @@
 <?php
 
+    /** @noinspection PhpMissingFieldTypeInspection */
+
     namespace RTEX\Objects\Program\Instructions;
 
     use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
     use RTEX\Classes\Utilities;
     use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
     use RTEX\Exceptions\Core\UnsupportedVariableType;
     use RTEX\Interfaces\InstructionInterface;
 
@@ -13,7 +17,7 @@
         /**
          * The name of the variable to select
          *
-         * @var string|integer|boolean|float|null|InstructionInterface|InstructionInterface[]
+         * @var mixed
          */
         private $Variable;
 
@@ -28,27 +32,12 @@
             return InstructionType::GetVariable;
         }
 
-        /**
-         * Returns an array representation of the object
-         *
-         * @return array
-         * @throws UnsupportedVariableType
-         */
-        public function toArray(): array
-        {
-            return [
-                'type' => $this->getType(),
-                '_' => [
-                    'variable' => Utilities::toArray($this->Variable)
-                ]
-            ];
-        }
-
         /**
          * Returns
          *
-         * @return bool|float|int|InstructionInterface|string|null
+         * @return mixed
          * @noinspection PhpMissingReturnTypeInspection
+         * @noinspection PhpUnused
          */
         public function getVariable()
         {
@@ -56,34 +45,19 @@
         }
 
         /**
-         * @param bool|float|int|InstructionInterface|string|null $variable
+         * @param mixed $variable
+         * @throws MalformedInstructionException
          * @throws UnsupportedVariableType
+         * @noinspection PhpMissingParamTypeInspection
          */
         public function setVariable($variable): void
         {
-            switch(Utilities::determineType($variable))
-            {
-
-
-                default:
-                    $this->Variable = $variable;
-            }
-        }
-
-        /**
-         * Constructs a new GetVariable instruction from an array representation
-         *
-         * @throws UnsupportedVariableType
-         */
-        public static function fromArray(array $data): InstructionInterface
-        {
-            $instruction = new GetVariable();
-            $instruction->setVariable($data['variable'] ?? null);
-            return $instruction;
+            $this->Variable = InstructionBuilder::fromRaw($variable);
         }
 
         /**
          * @inheritDoc
+         * @throws UnsupportedVariableType
          */
         public function eval(Engine $engine)
         {
@@ -91,4 +65,45 @@
                 $engine->eval($this->Variable)
             );
         }
+
+        /**
+         * Returns an array representation of the object
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'variable' => $this->Variable
+            ]);
+        }
+
+        /**
+         * Constructs a new GetVariable instruction from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setVariable($data['variable'] ?? null);
+
+            return $instruction;
+        }
+
+        /**
+         * @inheritDoc
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (variable: %s)',
+                Utilities::entityToString($this->Variable)
+            );
+        }
     }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/GreaterThan.php b/src/RTEX/Objects/Program/Instructions/GreaterThan.php
new file mode 100644
index 0000000..382dd51
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/GreaterThan.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class GreaterThan implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::GreaterThan;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) > intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s>%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php b/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php
new file mode 100644
index 0000000..898cd8c
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/GreaterThanOrEquals.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class GreaterThanOrEquals implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::GreaterThanOrEquals;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) >= intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s>=%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Invoke.php b/src/RTEX/Objects/Program/Instructions/Invoke.php
new file mode 100644
index 0000000..35d98de
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Invoke.php
@@ -0,0 +1,204 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Invoke implements InstructionInterface
+    {
+        /**
+         * The namespace of the method to invoke
+         *
+         * @var string
+         */
+        private $Namespace;
+
+        /**
+         * The name of the method to invoke
+         *
+         * @var string
+         */
+        private $Method;
+
+        /**
+         * The parameters to pass to the method
+         *
+         * @var array
+         */
+        private $Parameters;
+
+        /**
+         * If the execution should be stopped after the method has raised an exception
+         *
+         * @var bool
+         */
+        private $FailOnError;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Invoke;
+        }
+
+        public function __construct()
+        {
+            $this->Parameters = [];
+            $this->FailOnError = false;
+        }
+
+        /**
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'namespace' => $this->Namespace,
+                'method' => $this->Method,
+                'parameters' => $this->Parameters,
+                'fail_on_error' => $this->FailOnError,
+            ]);
+        }
+
+        /**
+         * Constructs an instruction from an array
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setNamespace($data['namespace'] ?? null);
+            $instruction->setMethod($data['method'] ?? null);
+            $instruction->setParameters($data['parameters'] ?? []);
+            $instruction->setFailOnError($data['fail_on_error'] ?? false);
+
+            return $instruction;
+        }
+
+        /**
+         * Invokes the method and returns the result
+         *
+         * @param Engine $engine
+         * @return mixed
+         * @throws UnsupportedVariableType
+         * @noinspection PhpMissingReturnTypeInspection
+         */
+        public function eval(Engine $engine)
+        {
+            $parameters = [];
+            foreach($this->Parameters as $key => $value)
+                $parameters[$key] = $engine->eval($value);
+
+            return $engine->callMethod(
+                $engine->eval($this->Namespace), $engine->eval($this->Method),
+                $parameters
+            );
+        }
+
+        /**
+         * @return string
+         * @noinspection PhpUnused
+         */
+        public function getNamespace(): string
+        {
+            return $this->Namespace;
+        }
+
+        /**
+         * @param string $Namespace
+         */
+        public function setNamespace(string $Namespace): void
+        {
+            $this->Namespace = $Namespace;
+        }
+
+        /**
+         * @return string
+         * @noinspection PhpUnused
+         */
+        public function getMethod(): string
+        {
+            return $this->Method;
+        }
+
+        /**
+         * @param string $Method
+         */
+        public function setMethod(string $Method): void
+        {
+            $this->Method = $Method;
+        }
+
+        /**
+         * @return array
+         * @noinspection PhpUnused
+         */
+        public function getParameters(): array
+        {
+            return $this->Parameters;
+        }
+
+        /**
+         * @param array $Parameters
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setParameters(array $Parameters): void
+        {
+            $this->Parameters = InstructionBuilder::fromRaw($Parameters);
+        }
+
+        /**
+         * @return bool
+         * @noinspection PhpUnused
+         */
+        public function isFailOnError(): bool
+        {
+            return $this->FailOnError;
+        }
+
+        /**
+         * @param bool $FailOnError
+         */
+        public function setFailOnError(bool $FailOnError): void
+        {
+            $this->FailOnError = $FailOnError;
+        }
+
+        /**
+         * @inheritDoc
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            $parameters = [];
+            foreach ($this->Parameters as $key => $value)
+                $parameters[] = $key . ': ' . Utilities::entityToString($value);
+
+            $results = sprintf(
+                self::getType() . ' %s::%s(%s)',
+                $this->Namespace, $this->Method, implode(', ', $parameters)
+            );
+
+            if(!$this->FailOnError)
+                $results .= ' #FOE';
+
+            return $results;
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/LessThan.php b/src/RTEX/Objects/Program/Instructions/LessThan.php
new file mode 100644
index 0000000..8ae09b8
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/LessThan.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class LessThan implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::LessThan;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) < intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s<%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/LessThanOrEquals.php b/src/RTEX/Objects/Program/Instructions/LessThanOrEquals.php
new file mode 100644
index 0000000..7a50de1
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/LessThanOrEquals.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class LessThanOrEquals implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Divide;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) <= intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s<=%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Modulo.php b/src/RTEX/Objects/Program/Instructions/Modulo.php
new file mode 100644
index 0000000..fbdab59
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Modulo.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Modulo implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Modulo;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) % intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s%%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Multiply.php b/src/RTEX/Objects/Program/Instructions/Multiply.php
new file mode 100644
index 0000000..83c2a68
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Multiply.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Multiply implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Multiply;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) * intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s*%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Power.php b/src/RTEX/Objects/Program/Instructions/Power.php
new file mode 100644
index 0000000..9855be0
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Power.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Power implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Power;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) ** intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s**%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/SetVariable.php b/src/RTEX/Objects/Program/Instructions/SetVariable.php
index 091350b..2f11f4b 100644
--- a/src/RTEX/Objects/Program/Instructions/SetVariable.php
+++ b/src/RTEX/Objects/Program/Instructions/SetVariable.php
@@ -1,10 +1,14 @@
-<?php /** @noinspection PhpReturnDocTypeMismatchInspection */
+<?php
 
-namespace RTEX\Objects\Program\Instructions;
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
 
     use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
     use RTEX\Classes\Utilities;
     use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
     use RTEX\Exceptions\Core\UnsupportedVariableType;
     use RTEX\Interfaces\InstructionInterface;
 
@@ -13,14 +17,14 @@ namespace RTEX\Objects\Program\Instructions;
         /**
          * The name of the variable to set
          *
-         * @var string|integer|boolean|float|null|InstructionInterface
+         * @var mixed
          */
         private $Variable;
 
         /**
          * The value to set the variable to
          *
-         * @var string|integer|boolean|float|null|InstructionInterface
+         * @var mixed
          */
         private $Value;
 
@@ -34,6 +38,48 @@ namespace RTEX\Objects\Program\Instructions;
             return InstructionType::SetVariable;
         }
 
+
+        /**
+         * @return mixed
+         * @noinspection PhpMissingReturnTypeInspection
+         * @noinspection PhpUnused
+         */
+        public function getVariable()
+        {
+            return $this->Variable;
+        }
+
+        /**
+         * @param mixed $variable
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         * @noinspection PhpMissingParamTypeInspection
+         */
+        public function setVariable($variable): void
+        {
+            $this->Variable = InstructionBuilder::fromRaw($variable);
+        }
+
+        /**
+         * @return mixed
+         * @noinspection PhpMissingReturnTypeInspection
+         */
+        public function getValue()
+        {
+            return $this->Value;
+        }
+
+        /**
+         * @param mixed $value
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         * @noinspection PhpMissingParamTypeInspection
+         */
+        public function setValue($value): void
+        {
+            $this->Value = InstructionBuilder::fromRaw($value);
+        }
+
         /**
          * Returns an array representation of the object
          *
@@ -42,17 +88,17 @@ namespace RTEX\Objects\Program\Instructions;
          */
         public function toArray(): array
         {
-            return [
-                'type' => $this->getType(),
-                '_' => [
-                    'variable' => Utilities::toArray($this->Variable),
-                    'value' => Utilities::toArray($this->Value)
-                ]
-            ];
+            return InstructionBuilder::toRaw(self::getType(), [
+                'variable' => $this->Variable,
+                'value' => $this->Value
+            ]);
         }
 
         /**
-         * @inheritDoc
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
          */
         public static function fromArray(array $data): InstructionInterface
         {
@@ -63,54 +109,29 @@ namespace RTEX\Objects\Program\Instructions;
             return $instruction;
         }
 
-        /**
-         * @return bool|float|int|InstructionInterface|InstructionInterface[]|string|null
-         */
-        public function getVariable()
-        {
-            return $this->Variable;
-        }
-
-        /**
-         * @param bool|float|int|InstructionInterface|InstructionInterface|string|null $variable
-         * @throws UnsupportedVariableType
-         * @noinspection PhpMissingParamTypeInspection
-         */
-        public function setVariable($variable): void
-        {
-            Utilities::determineType($variable);
-            $this->Variable = $variable;
-        }
-
-        /**
-         * @return bool|float|int|InstructionInterface|InstructionInterface[]|string|null
-         */
-        public function getValue()
-        {
-            return $this->Value;
-        }
-
-        /**
-         * @param bool|float|int|InstructionInterface|InstructionInterface|string|null $value
-         * @throws UnsupportedVariableType
-         * @noinspection PhpMissingParamTypeInspection
-         */
-        public function setValue($value): void
-        {
-            Utilities::determineType($value);
-            $this->Value = $value;
-        }
-
         /**
          * @param Engine $engine
-         * @return mixed|void
+         * @return void
          * @throws UnsupportedVariableType
          */
-        public function eval(Engine $engine)
+        public function eval(Engine $engine): void
         {
             $engine->getEnvironment()->setRuntimeVariable(
                 $engine->eval($this->Variable),
                 $engine->eval($this->Value)
             );
         }
+
+        /**
+         * @inheritDoc
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (variable: %s, value: %s)',
+                Utilities::entityToString($this->Variable),
+                Utilities::entityToString($this->Value)
+            );
+        }
     }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Subtract.php b/src/RTEX/Objects/Program/Instructions/Subtract.php
new file mode 100644
index 0000000..5030c3f
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Subtract.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Subtract implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Subtract;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) - intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s-%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file
diff --git a/src/RTEX/Objects/Program/Instructions/Sum.php b/src/RTEX/Objects/Program/Instructions/Sum.php
new file mode 100644
index 0000000..8f2df93
--- /dev/null
+++ b/src/RTEX/Objects/Program/Instructions/Sum.php
@@ -0,0 +1,135 @@
+<?php
+
+    /** @noinspection PhpMissingFieldTypeInspection */
+
+    namespace RTEX\Objects\Program\Instructions;
+
+    use RTEX\Abstracts\InstructionType;
+    use RTEX\Classes\InstructionBuilder;
+    use RTEX\Classes\Utilities;
+    use RTEX\Engine;
+    use RTEX\Exceptions\Core\MalformedInstructionException;
+    use RTEX\Exceptions\Core\UnsupportedVariableType;
+    use RTEX\Interfaces\InstructionInterface;
+
+    class Sum implements InstructionInterface
+    {
+        /**
+         * @var mixed
+         */
+        private $A;
+
+        /**
+         * @var mixed
+         */
+        private $B;
+
+        /**
+         * Returns the type of instruction
+         *
+         * @return string
+         */
+        public function getType(): string
+        {
+            return InstructionType::Sum;
+        }
+
+        /**
+         * Returns an array representation of the instruction
+         *
+         * @return array
+         * @throws UnsupportedVariableType
+         */
+        public function toArray(): array
+        {
+            return InstructionBuilder::toRaw(self::getType(), [
+                'a' => $this->A,
+                'b' => $this->B
+            ]);
+        }
+
+        /**
+         * Constructs a new instance of this class from an array representation
+         *
+         * @param array $data
+         * @return InstructionInterface
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public static function fromArray(array $data): InstructionInterface
+        {
+            $instruction = new self();
+            $instruction->setA($data['a'] ?? null);
+            $instruction->setB($data['b'] ?? null);
+            return $instruction;
+        }
+
+        /**
+         * @param Engine $engine
+         * @return int
+         * @throws UnsupportedVariableType
+         */
+        public function eval(Engine $engine): int
+        {
+            return (intval($engine->eval($this->A)) + intval($engine->eval($this->B)));
+        }
+
+        /**
+         * Returns the string representation of the instruction
+         *
+         * @return string
+         * @throws UnsupportedVariableType
+         */
+        public function __toString(): string
+        {
+            return sprintf(
+                self::getType() . ' (%s+%s)',
+                Utilities::entityToString($this->A),
+                Utilities::entityToString($this->B)
+            );
+        }
+
+        /**
+         * Gets the value of A
+         *
+         * @return mixed
+         */
+        public function getA(): mixed
+        {
+            return $this->A;
+        }
+
+        /**
+         * Sets the value of A
+         *
+         * @param mixed $A
+         * @throws UnsupportedVariableType
+         * @throws MalformedInstructionException
+         */
+        public function setA(mixed $A): void
+        {
+            $this->A = InstructionBuilder::fromRaw($A);
+        }
+
+        /**
+         * Gets the value of B
+         *
+         * @return mixed
+         */
+        public function getB(): mixed
+        {
+            return $this->B;
+        }
+
+        /**
+         * Sets the value of B
+         *
+         * @param mixed $B
+         * @throws MalformedInstructionException
+         * @throws UnsupportedVariableType
+         */
+        public function setB(mixed $B): void
+        {
+            $this->B = InstructionBuilder::fromRaw($B);
+        }
+    }
\ No newline at end of file