diff --git a/encompass-cs/Collections/BitSet512.cs b/encompass-cs/Collections/BitSet512.cs
index 1c67de7..e9581e2 100644
--- a/encompass-cs/Collections/BitSet512.cs
+++ b/encompass-cs/Collections/BitSet512.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 
 namespace Encompass
 {
@@ -118,6 +119,17 @@ namespace Encompass
             return this == Zero;
         }
 
+        public IEnumerable<int> TrueIndices()
+        {
+            for (int i = 0; i < 512; i++)
+            {
+                if (Get(i))
+                {
+                    yield return i;
+                }
+            }
+        }
+
         public static BitSet512 BitwiseAnd(BitSet512 left, BitSet512 right)
         {
             return left & right;
diff --git a/encompass-cs/ComponentManager.cs b/encompass-cs/ComponentManager.cs
index 3856af5..2c3c119 100644
--- a/encompass-cs/ComponentManager.cs
+++ b/encompass-cs/ComponentManager.cs
@@ -11,19 +11,21 @@ namespace Encompass
         private readonly ComponentStore _upToDateComponentStore;
 
         public Dictionary<Type, int> TypeToIndex { get; }
+        private Dictionary<int, Type> IndexToType { get; }
 
         private readonly HashSet<int> _entitiesMarkedForRemoval = new HashSet<int>();
 
         internal ComponentBitSet ImmediateBits { get { return _immediateComponentStore.ComponentBitSet; } }
         internal ComponentBitSet ExistingBits { get { return _existingComponentStore.ComponentBitSet; } }
 
-        public ComponentManager(Dictionary<Type, int> typeToIndex)
+        public ComponentManager(Dictionary<Type, int> typeToIndex, Dictionary<int, Type> indexToType)
         {
             _existingComponentStore = new ComponentStore(typeToIndex);
             _immediateComponentStore = new ComponentStore(typeToIndex);
             _replayStore = new ComponentDeltaStore(typeToIndex);
             _upToDateComponentStore = new ComponentStore(typeToIndex);
             TypeToIndex = typeToIndex;
+            IndexToType = indexToType;
         }
 
         public void RegisterComponentType<TComponent>() where TComponent : struct
@@ -186,6 +188,13 @@ namespace Encompass
             return ref _existingComponentStore.Get<TComponent>(entityID);
         }
 
+        #if DEBUG
+        internal TComponent Debug_ReadExistingComponentByEntityAndType<TComponent>(int entityID) where TComponent : struct
+        {
+            return _existingComponentStore.Get<TComponent>(entityID);
+        }
+        #endif
+
         internal ref TComponent ReadImmediateComponentByEntityAndType<TComponent>(int entityID) where TComponent : struct
         {
             return ref _immediateComponentStore.Get<TComponent>(entityID);
@@ -284,5 +293,18 @@ namespace Encompass
         {
             return _upToDateComponentStore.EntityBitArray(entityID).AllFalse();
         }
+
+        // should be used for debugging only!
+        #if DEBUG
+        internal IEnumerable<object> Components(int entityID)
+        {
+            foreach (var typeIndex in ExistingBits.EntityBitArray(entityID).TrueIndices())
+            {
+                var method = typeof(ComponentManager).GetMethod(nameof(ComponentManager.Debug_ReadExistingComponentByEntityAndType), System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
+                var generic = method.MakeGenericMethod(IndexToType[typeIndex]);
+                yield return generic.Invoke(this, new object[] { entityID });
+            }
+        }
+        #endif
     }
 }
diff --git a/encompass-cs/Renderer.cs b/encompass-cs/Renderer.cs
index 2ebf732..6b62798 100644
--- a/encompass-cs/Renderer.cs
+++ b/encompass-cs/Renderer.cs
@@ -64,5 +64,12 @@ namespace Encompass
         {
             return _componentManager.SomeExistingComponent<TComponent>();
         }
+
+        #if DEBUG
+        protected IEnumerable<object> Debug_GetAllComponents(Entity entity)
+        {
+            return _componentManager.Components(entity.ID);
+        }
+        #endif
     }
 }
diff --git a/encompass-cs/WorldBuilder.cs b/encompass-cs/WorldBuilder.cs
index 777b66c..82ba7b2 100644
--- a/encompass-cs/WorldBuilder.cs
+++ b/encompass-cs/WorldBuilder.cs
@@ -34,13 +34,14 @@ namespace Encompass
         private readonly HashSet<Type> _componentTypesToPreload = new HashSet<Type>();
         private readonly HashSet<Type> _messageTypes = new HashSet<Type>();
         private readonly Dictionary<Type, int> _typeToIndex = new Dictionary<Type, int>();
+        private readonly Dictionary<int, Type> _indexToType = new Dictionary<int, Type>();
 
         public WorldBuilder(int entityCapacity = 32768)
         {
             _entityCapacity = entityCapacity;
             _timeManager = new TimeManager();
             _trackingManager = new TrackingManager();
-            _componentManager = new ComponentManager(_typeToIndex);
+            _componentManager = new ComponentManager(_typeToIndex, _indexToType);
             _messageManager = new MessageManager(_timeManager);
             _entityManager = new EntityManager(_componentManager, entityCapacity);
             _renderManager = new RenderManager(_entityManager);
@@ -94,7 +95,9 @@ namespace Encompass
         {
             if (!_typeToIndex.ContainsKey(typeof(TComponent)))
             {
-                _typeToIndex.Add(typeof(TComponent), _typeToIndex.Count);
+                var count = _typeToIndex.Count;
+                _typeToIndex.Add(typeof(TComponent), count);
+                _indexToType.Add(count, typeof(TComponent));
                 _componentTypesToPreload.Add(typeof(TComponent));
                 _componentManager.RegisterComponentType<TComponent>();
                 _startingExistingComponentStore.RegisterComponentType<TComponent>();
@@ -428,7 +431,7 @@ namespace Encompass
             var dummyTimeManager = new TimeManager();
             var dummyMessageManager = new MessageManager(dummyTimeManager);
             var dummyTrackingManager = new TrackingManager();
-            var dummyComponentManager = new ComponentManager(_typeToIndex);
+            var dummyComponentManager = new ComponentManager(_typeToIndex, _indexToType);
             var dummyEntityManager = new EntityManager(dummyComponentManager, _entityCapacity);
             var dummyRenderManager = new RenderManager(dummyEntityManager);