diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/ArgumentsMismatchException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/ArgumentsMismatchException.java
index 165f863..082e9b3 100644
--- a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/ArgumentsMismatchException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/ArgumentsMismatchException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class ArgumentsMismatchException extends RuntimeException {
+public final class ArgumentsMismatchException extends OwnLangRuntimeException {
 
     public ArgumentsMismatchException() {
     }
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/OperationIsNotSupportedException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/OperationIsNotSupportedException.java
similarity index 79%
rename from ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/OperationIsNotSupportedException.java
rename to ownlang-core/src/main/java/com/annimon/ownlang/exceptions/OperationIsNotSupportedException.java
index 6daec73..191f9f9 100644
--- a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/OperationIsNotSupportedException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/OperationIsNotSupportedException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class OperationIsNotSupportedException extends RuntimeException {
+public final class OperationIsNotSupportedException extends OwnLangRuntimeException {
 
     public OperationIsNotSupportedException(Object operation) {
         super("Operation " + operation + " is not supported");
diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/OwnLangRuntimeException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/OwnLangRuntimeException.java
new file mode 100644
index 0000000..d121281
--- /dev/null
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/OwnLangRuntimeException.java
@@ -0,0 +1,15 @@
+package com.annimon.ownlang.exceptions;
+
+/**
+ * Base type for all runtime exceptions
+ */
+public abstract class OwnLangRuntimeException extends RuntimeException {
+
+    public OwnLangRuntimeException() {
+        super();
+    }
+
+    public OwnLangRuntimeException(String message) {
+        super(message);
+    }
+}
\ No newline at end of file
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/PatternMatchingException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/PatternMatchingException.java
similarity index 69%
rename from ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/PatternMatchingException.java
rename to ownlang-core/src/main/java/com/annimon/ownlang/exceptions/PatternMatchingException.java
index 05075f8..494264b 100644
--- a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/PatternMatchingException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/PatternMatchingException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class PatternMatchingException extends RuntimeException {
+public final class PatternMatchingException extends OwnLangRuntimeException {
 
     public PatternMatchingException() {
     }
diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/StoppedException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/StoppedException.java
new file mode 100644
index 0000000..67ad19b
--- /dev/null
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/StoppedException.java
@@ -0,0 +1,6 @@
+package com.annimon.ownlang.exceptions;
+
+public class StoppedException extends OwnLangRuntimeException {
+
+
+}
diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/TypeException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/TypeException.java
index c2e853b..e532307 100644
--- a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/TypeException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/TypeException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class TypeException extends RuntimeException {
+public final class TypeException extends OwnLangRuntimeException {
 
     public TypeException(String message) {
         super(message);
diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownClassException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownClassException.java
index 40c29b9..65b2fc1 100644
--- a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownClassException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownClassException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class UnknownClassException extends RuntimeException {
+public final class UnknownClassException extends OwnLangRuntimeException {
     
     private final String className;
 
diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownFunctionException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownFunctionException.java
index 74ad7d3..9aa2a9e 100644
--- a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownFunctionException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownFunctionException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class UnknownFunctionException extends RuntimeException {
+public final class UnknownFunctionException extends OwnLangRuntimeException {
     
     private final String functionName;
 
diff --git a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownPropertyException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownPropertyException.java
index 4156c59..bcfa22c 100644
--- a/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownPropertyException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/UnknownPropertyException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class UnknownPropertyException extends RuntimeException {
+public final class UnknownPropertyException extends OwnLangRuntimeException {
 
     private final String propertyName;
 
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/VariableDoesNotExistsException.java b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/VariableDoesNotExistsException.java
similarity index 78%
rename from ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/VariableDoesNotExistsException.java
rename to ownlang-core/src/main/java/com/annimon/ownlang/exceptions/VariableDoesNotExistsException.java
index 0981de1..419807e 100644
--- a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/VariableDoesNotExistsException.java
+++ b/ownlang-core/src/main/java/com/annimon/ownlang/exceptions/VariableDoesNotExistsException.java
@@ -1,6 +1,6 @@
 package com.annimon.ownlang.exceptions;
 
-public final class VariableDoesNotExistsException extends RuntimeException {
+public final class VariableDoesNotExistsException extends OwnLangRuntimeException {
     
     private final String variable;
 
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/LexerException.java b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/LexerException.java
index 66f8a95..d1bd4cb 100644
--- a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/LexerException.java
+++ b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/LexerException.java
@@ -6,7 +6,7 @@ import com.annimon.ownlang.parser.Pos;
  *
  * @author aNNiMON
  */
-public final class LexerException extends RuntimeException {
+public final class LexerException extends OwnLangParserException {
 
     public LexerException(String message) {
         super(message);
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/OwnLangParserException.java b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/OwnLangParserException.java
new file mode 100644
index 0000000..8aaa4a7
--- /dev/null
+++ b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/OwnLangParserException.java
@@ -0,0 +1,15 @@
+package com.annimon.ownlang.exceptions;
+
+/**
+ * Base type for all lexer and parser exceptions
+ */
+public abstract class OwnLangParserException extends RuntimeException {
+
+    public OwnLangParserException() {
+        super();
+    }
+
+    public OwnLangParserException(String message) {
+        super(message);
+    }
+}
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/ParseException.java b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/ParseException.java
index 1046f04..6b67ca1 100644
--- a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/ParseException.java
+++ b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/ParseException.java
@@ -7,7 +7,7 @@ import com.annimon.ownlang.parser.Range;
  *
  * @author aNNiMON
  */
-public final class ParseException extends RuntimeException {
+public final class ParseException extends OwnLangParserException {
 
     private final Range range;
 
diff --git a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/StoppedException.java b/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/StoppedException.java
deleted file mode 100644
index 8ce24c3..0000000
--- a/ownlang-parser/src/main/java/com/annimon/ownlang/exceptions/StoppedException.java
+++ /dev/null
@@ -1,6 +0,0 @@
-package com.annimon.ownlang.exceptions;
-
-public class StoppedException extends RuntimeException {
-
-
-}