diff --git a/Scripts/Editor/NodeEditorUtilities.cs b/Scripts/Editor/NodeEditorUtilities.cs
index d0cbc7b..67d18d0 100644
--- a/Scripts/Editor/NodeEditorUtilities.cs
+++ b/Scripts/Editor/NodeEditorUtilities.cs
@@ -48,8 +48,8 @@ namespace XNodeEditor {
                 );
             return methods.Count() > 0;
         }
-
-        /// <summary> Return a prettiefied type name. </summary>
+        
+        /// <summary> Return a prettified type name. </summary>
         public static string PrettyName(this Type type) {
             if (type == null) return "null";
             if (type == typeof(System.Object)) return "object";
diff --git a/Scripts/Editor/NodeGraphInspector.cs b/Scripts/Editor/NodeGraphInspector.cs
new file mode 100644
index 0000000..135277a
--- /dev/null
+++ b/Scripts/Editor/NodeGraphInspector.cs
@@ -0,0 +1,157 @@
+using System;
+using System.Reflection;
+using System.Linq;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+
+using XNode;
+using XNodeEditor;
+
+[CustomEditor(typeof(XNode.NodeGraph), true)]
+public class NodeGraphInspector : Editor
+{
+	SerializedProperty nodesProp;
+	SerializedProperty variablesProp;
+
+	void OnEnable()
+	{
+		nodesProp = serializedObject.FindProperty("nodes");
+		variablesProp = serializedObject.FindProperty("variables");
+	}
+
+	public override void OnInspectorGUI()
+	{
+		serializedObject.Update();
+
+		DrawVariables();
+
+		serializedObject.ApplyModifiedProperties();
+	}
+
+	void DrawVariables()
+	{
+		EditorGUILayout.LabelField("Variables");
+		EditorGUILayout.Space();
+		for (int i = 0; i < variablesProp.arraySize; i++)
+			DrawVariable(i);
+		DrawVariablesActions();
+	}
+
+	void DrawVariable(int index)
+	{
+		var variableProp = variablesProp.GetArrayElementAtIndex(index);
+		
+		var idProp = variableProp.FindPropertyRelative("id");
+		var typeProp = variableProp.FindPropertyRelative("typeString");
+
+
+		DrawVariableId(idProp);
+		DrawVariableType(typeProp);
+		DrawVariableValue(variableProp, typeProp.stringValue);
+		DrawVariableActions(index);
+
+		EditorGUILayout.Space();		
+	}
+
+	void DrawVariableId(SerializedProperty idProp)
+	{
+		EditorGUILayout.PropertyField(idProp);
+	}
+
+	void DrawVariableType(SerializedProperty typeProp)
+	{
+		List<string> options = new List<string>();
+		options.Add(typeProp.stringValue);
+		int idx = 0;
+
+		List<string> additionalTypes = new List<string>();
+		additionalTypes.Add(typeof(float).AssemblyQualifiedName);
+		additionalTypes.Add(typeof(int).AssemblyQualifiedName);
+		additionalTypes.Add(typeof(bool).AssemblyQualifiedName);
+		additionalTypes.Add(typeof(string).AssemblyQualifiedName);
+		additionalTypes.Add(typeof(Vector3).AssemblyQualifiedName);
+		
+		/*
+		Assembly asm = typeof(Vector3).Assembly;
+		foreach (var colorPair in NodeEditorPreferences.typeColors)
+		{
+			var type = asm.GetType(colorPair.Key, false);
+			Debug.Log(colorPair.Key + "   " + type);
+
+			if (type == null)
+				continue;
+			if (additionalTypes.Contains(type.AssemblyQualifiedName))
+				continue;
+			additionalTypes.Add(colorPair.Key);
+		}
+		*/
+
+		foreach (var addType in additionalTypes)
+		{
+			if (!options.Contains(addType))
+				options.Add(addType);
+		}
+
+		List<string> prettyOptions = new List<string>();
+
+		foreach (var option in options)
+		{
+			prettyOptions.Add(System.Type.GetType(option, false).PrettyName());
+		}
+
+
+		idx = EditorGUILayout.Popup(idx, prettyOptions.ToArray());
+
+		typeProp.stringValue = options[idx];
+	}
+
+	void DrawVariableValue(SerializedProperty variableProp, string type)
+	{
+		if (type != "")
+		{
+			type = System.Type.GetType(type, false).PrettyName();
+			type = NodeGraph.GetSafeType(type);
+			
+			var valprop = variableProp.FindPropertyRelative(type + "Value");
+			
+			if (valprop == null && type != "object")
+			{
+				type = "object";
+				valprop = variableProp.FindPropertyRelative(type + "Value");
+			}
+
+			if (valprop != null)
+				EditorGUILayout.PropertyField(valprop);
+			else
+				EditorGUILayout.LabelField("Value");
+		}
+		else
+			EditorGUILayout.LabelField("Value");
+	}
+
+	void DrawVariableActions(int index)
+	{
+		if (GUILayout.Button("Remove variable", GUILayout.Width(120)))
+		{
+			variablesProp.DeleteArrayElementAtIndex(index);
+		}
+	}
+
+	void DrawVariablesActions()
+	{
+		GUILayout.BeginHorizontal();
+
+		GUILayout.FlexibleSpace();
+		if (GUILayout.Button("Add new variable", GUILayout.Width(120)))
+		{
+			variablesProp.InsertArrayElementAtIndex(variablesProp.arraySize);
+			var newVarProp = variablesProp.GetArrayElementAtIndex(variablesProp.arraySize -1);
+			newVarProp.FindPropertyRelative("id").stringValue = (target as NodeGraph).GetSafeId("new_variable");
+			newVarProp.FindPropertyRelative("typeString").stringValue = typeof(float).AssemblyQualifiedName;
+		}
+
+		GUILayout.EndHorizontal();
+	}
+}
diff --git a/Scripts/Editor/NodeGraphInspector.cs.meta b/Scripts/Editor/NodeGraphInspector.cs.meta
new file mode 100644
index 0000000..58f2bd6
--- /dev/null
+++ b/Scripts/Editor/NodeGraphInspector.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 16edf05454c66b04ba4ebd0bf5b0af6c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Scripts/Editor/NodeInspector.cs b/Scripts/Editor/NodeInspector.cs
new file mode 100644
index 0000000..da797cc
--- /dev/null
+++ b/Scripts/Editor/NodeInspector.cs
@@ -0,0 +1,12 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+
+using XNode;
+
+[CustomEditor(typeof(Node), true)]
+public class NodeInspector : Editor
+{
+	public override void OnInspectorGUI() { /*hides unneeded info*/ }
+}
diff --git a/Scripts/Editor/NodeInspector.cs.meta b/Scripts/Editor/NodeInspector.cs.meta
new file mode 100644
index 0000000..0faa43e
--- /dev/null
+++ b/Scripts/Editor/NodeInspector.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: a079842175cdba54a8c36ad52f983502
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Scripts/Node.cs b/Scripts/Node.cs
index d65fc03..5bede6e 100644
--- a/Scripts/Node.cs
+++ b/Scripts/Node.cs
@@ -62,11 +62,11 @@ namespace XNode {
 
         protected void OnEnable() {
             NodeDataCache.UpdatePorts(this, ports);
-            Init();
+            // Init();
         }
 
         /// <summary> Initialize node. Called on creation. </summary>
-        protected virtual void Init() { name = GetType().Name; }
+        public virtual void Init() { name = GetType().Name; }
 
         /// <summary> Checks all connections for invalid references, and removes them. </summary>
         public void VerifyConnections() {
diff --git a/Scripts/NodeGraph.cs b/Scripts/NodeGraph.cs
index c2092e0..f17d1f4 100644
--- a/Scripts/NodeGraph.cs
+++ b/Scripts/NodeGraph.cs
@@ -1,4 +1,6 @@
 using System;
+using System.Linq;
+using System.Text.RegularExpressions;
 using System.Collections.Generic;
 using UnityEngine;
 
@@ -10,6 +12,9 @@ namespace XNode {
         /// <summary> All nodes in the graph. <para/>
         /// See: <see cref="AddNode{T}"/> </summary>
         [SerializeField] public List<Node> nodes = new List<Node>();
+        
+        /// <summary> All variables in the graph. </summary>
+        [SerializeField] public List<Variable> variables = new List<Variable>();
 
         /// <summary> Add a node to the graph by type </summary>
         public T AddNode<T>() where T : Node {
@@ -28,6 +33,7 @@ namespace XNode {
 #endif
             nodes.Add(node);
             node.graph = this;
+            node.Init();
             return node;
         }
 
@@ -44,6 +50,7 @@ namespace XNode {
 #endif
             nodes.Add(node);
             node.graph = this;
+            node.Init();
             return node;
         }
 
@@ -60,9 +67,10 @@ namespace XNode {
             nodes.Remove(node);
         }
 
-        /// <summary> Remove all nodes and connections from the graph </summary>
+        /// <summary> Remove all nodes, connections and variables from the graph </summary>
         public void Clear() {
             nodes.Clear();
+            variables.Clear();
         }
 
         /// <summary> Create a new deep copy of this graph </summary>
@@ -74,6 +82,7 @@ namespace XNode {
                 Node node = Instantiate(nodes[i]) as Node;
                 node.graph = graph;
                 graph.nodes[i] = node;
+                node.Init();
             }
 
             // Redirect all connections
@@ -85,5 +94,60 @@ namespace XNode {
 
             return graph;
         }
+
+        /// <summary> Add a variable to the graph </summary>
+        /// <param name="newVariable">the new variable data</param>  
+        /// <returns>the actual id used, avoiding duplicates</returns>     
+        public string AddVariable(Variable newVariable)
+        {
+            newVariable.id = GetSafeId(newVariable.id);
+            newVariable.typeString = GetSafeType(newVariable.typeString);
+            variables.Add(newVariable);
+            return newVariable.id;
+        }
+
+        /// <summary> Remove a variable from the graph </summary>
+        public void RemoveVariable(string id)
+        {
+            variables.Remove(GetVariable(id));
+        }
+
+        /// <summary> Get a variable from the graph </summary>
+        public Variable GetVariable(string id)
+        {
+            return variables.Find((Variable v) => v.id == id);
+        }
+
+        /// <summary> Get a duplication safe id </summary>
+        public string GetSafeId(string id)
+        {
+            id = id.ToLower();
+            id.Trim();
+            var rx = new Regex(@"\s");
+            rx.Replace(id, new MatchEvaluator((Match m) => "_"));
+            
+            var existingVariable = variables.Find((Variable v) => v.id == id);
+            if (existingVariable == null)
+                return id;
+
+            int index = 1;
+            
+            while (variables.Find((Variable v) => v.id == id + "_" + index.ToString()) != null)
+                index++;
+            return id + "_" + index.ToString();
+        }
+
+        /// <summary> Get a variable safe type </summary>
+        public static string GetSafeType(string type)
+        {
+			const string UE = "UnityEngine."; 
+			if (type.Contains(UE))
+			{
+				type = type.Substring(UE.Length);
+				type = type.Substring(0,1).ToLower() + type.Substring(1);
+			}
+
+            return type;
+        }
     }
 }
\ No newline at end of file
diff --git a/Scripts/Variable.cs b/Scripts/Variable.cs
new file mode 100644
index 0000000..9d57c6c
--- /dev/null
+++ b/Scripts/Variable.cs
@@ -0,0 +1,52 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[System.Serializable]
+public class Variable
+{
+	public string id;
+	public string typeString;
+	public System.Type type
+	{
+		get
+		{
+			if (typeString == typeof(float).AssemblyQualifiedName) return typeof(float);
+			if (typeString == typeof(int).AssemblyQualifiedName) return typeof(int);
+			if (typeString == typeof(string).AssemblyQualifiedName) return typeof(string);
+			if (typeString == typeof(bool).AssemblyQualifiedName) return typeof(bool);
+			if (typeString == typeof(Vector3).AssemblyQualifiedName) return typeof(Vector3);
+			return typeof(Object);
+		}
+	}
+
+	public object Value
+	{
+		get
+		{
+			if (typeString == typeof(float).AssemblyQualifiedName) return floatValue;
+			if (typeString == typeof(int).AssemblyQualifiedName) return intValue;
+			if (typeString == typeof(string).AssemblyQualifiedName) return stringValue;
+			if (typeString == typeof(bool).AssemblyQualifiedName) return boolValue;
+			if (typeString == typeof(Vector3).AssemblyQualifiedName) return vector3Value;
+			return objectValue;
+		}
+	}
+
+	public string stringValue;
+	public float floatValue;
+	public int intValue;
+	public bool boolValue;
+	public Vector3 vector3Value;
+	
+	// more here
+
+	public Object objectValue;
+
+
+	public Variable()
+	{
+		id = "new_variable";
+		typeString = typeof(float).AssemblyQualifiedName;
+	}
+}
diff --git a/Scripts/Variable.cs.meta b/Scripts/Variable.cs.meta
new file mode 100644
index 0000000..a68dc79
--- /dev/null
+++ b/Scripts/Variable.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 81f7d4c8803ebee4c903b0976f780d95
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: