diff --git a/encompass-cs/Engine.cs b/encompass-cs/Engine.cs
index 6428abc..2557b9f 100644
--- a/encompass-cs/Engine.cs
+++ b/encompass-cs/Engine.cs
@@ -213,7 +213,7 @@ namespace Encompass
         /// <summary>
         /// Returns all Entities containing the specified Component type.
         /// </summary>
-        protected Span<Entity> ReadEntities<TComponent>() where TComponent : struct
+        protected Span<Entity> ReadEntities<TComponent>() where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -238,7 +238,7 @@ namespace Encompass
         /// <summary>
         /// Returns an Entity containing the specified Component type.
         /// </summary>
-        protected ref readonly Entity ReadEntity<TComponent>() where TComponent : struct
+        protected ref readonly Entity ReadEntity<TComponent>() where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -263,7 +263,7 @@ namespace Encompass
         /// <summary>
         /// Returns all of the Components with the specified Component Type.
         /// </summary>
-        protected Span<TComponent> ReadComponents<TComponent>() where TComponent : struct
+        protected Span<TComponent> ReadComponents<TComponent>() where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -288,7 +288,7 @@ namespace Encompass
         /// <summary>
         /// Returns a Component with the specified Component Type. If multiples exist, an arbitrary Component is returned.
         /// </summary>
-        protected ref readonly TComponent ReadComponent<TComponent>() where TComponent : struct
+        protected ref readonly TComponent ReadComponent<TComponent>() where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -313,7 +313,7 @@ namespace Encompass
         /// <summary>
         /// Returns true if any Component with the specified Component Type exists.
         /// </summary>
-        protected bool SomeComponent<TComponent>() where TComponent : struct
+        protected bool SomeComponent<TComponent>() where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -335,7 +335,7 @@ namespace Encompass
             }
         }
 
-        private ref TComponent GetComponentHelper<TComponent>(int entityID) where TComponent : struct
+        private ref TComponent GetComponentHelper<TComponent>(int entityID) where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -366,7 +366,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalReadException">
         /// Thrown when the Engine does not declare that it reads the given Component Type.
         /// </exception>
-        protected ref readonly TComponent GetComponent<TComponent>(in Entity entity) where TComponent : struct
+        protected ref readonly TComponent GetComponent<TComponent>(in Entity entity) where TComponent : struct, IComponent
         {
             return ref GetComponentHelper<TComponent>(entity.ID);
         }
@@ -380,7 +380,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalReadException">
         /// Thrown when the Engine does not declare that it reads the given Component Type.
         /// </exception>
-        protected ref TComponent GetComponentMutable<TComponent>(in Entity entity) where TComponent : struct
+        protected ref TComponent GetComponentMutable<TComponent>(in Entity entity) where TComponent : struct, IComponent
         {
             return ref GetComponentHelper<TComponent>(entity.ID);
         }
@@ -391,7 +391,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalReadException">
         /// Thrown when the Engine does not declare that is Reads the given Component Type.
         /// </exception>
-        protected bool HasComponent<TComponent>(in Entity entity) where TComponent : struct
+        protected bool HasComponent<TComponent>(in Entity entity) where TComponent : struct, IComponent
         {
             var immediateRead = ReadImmediateTypes.Contains(typeof(TComponent));
             var existingRead = ReadTypes.Contains(typeof(TComponent));
@@ -449,7 +449,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalWriteException">
         /// Thrown when the Engine does not declare that it Writes the given Component Type.
         /// </exception>
-        protected void SetComponent<TComponent>(in Entity entity, in TComponent component) where TComponent : struct
+        protected void SetComponent<TComponent>(in Entity entity, in TComponent component) where TComponent : struct, IComponent
         {
             var priority = WritePriorities.ContainsKey(typeof(TComponent)) ? WritePriorities[typeof(TComponent)] : DefaultWritePriority;
 
@@ -489,7 +489,7 @@ namespace Encompass
         /// <exception cref="Encompass.Exceptions.IllegalWriteException">
         /// Thrown when the Engine does not declare that it Writes the given Component Type.
         /// </exception>
-        protected void AddComponent<TComponent>(in Entity entity, in TComponent component) where TComponent : struct
+        protected void AddComponent<TComponent>(in Entity entity, in TComponent component) where TComponent : struct, IComponent
         {
             if (!EntityCreatedThisFrame(entity.ID))
             {
@@ -597,7 +597,7 @@ namespace Encompass
         /// Destroys an arbitrary Entity containing a Component of the specified Type.
         /// Entity destruction takes place after all the Engines have been processed by World Update.
         /// </summary>
-        protected void DestroyWith<TComponent>() where TComponent : struct
+        protected void DestroyWith<TComponent>() where TComponent : struct, IComponent
         {
             Destroy(ReadEntity<TComponent>());
         }
@@ -606,7 +606,7 @@ namespace Encompass
         /// Destroys all Entities containing a Component of the specified Type.
         /// Entity destruction takes place after all the Engines have been processed by World Update.
         /// </summary>
-        protected void DestroyAllWith<TComponent>() where TComponent : struct
+        protected void DestroyAllWith<TComponent>() where TComponent : struct, IComponent
         {
             foreach (var entity in ReadEntities<TComponent>())
             {
@@ -619,7 +619,7 @@ namespace Encompass
         /// Note that the Engine must Read the Component type that is being removed.
         /// If a Component with the specified type does not exist on the Entity, returns false and does not mutate the Entity.
         /// </summary>
-        protected void RemoveComponent<TComponent>(in Entity entity) where TComponent : struct
+        protected void RemoveComponent<TComponent>(in Entity entity) where TComponent : struct, IComponent
         {
             var priority = WritePriorities.ContainsKey(typeof(TComponent)) ? WritePriorities[typeof(TComponent)] : DefaultWritePriority;
 
diff --git a/encompass-cs/Interfaces/IComponent.cs b/encompass-cs/Interfaces/IComponent.cs
new file mode 100644
index 0000000..d51b93c
--- /dev/null
+++ b/encompass-cs/Interfaces/IComponent.cs
@@ -0,0 +1,4 @@
+namespace Encompass
+{
+    public interface IComponent { }
+}
diff --git a/encompass-cs/Renderer.cs b/encompass-cs/Renderer.cs
index ccc8e59..85b5489 100644
--- a/encompass-cs/Renderer.cs
+++ b/encompass-cs/Renderer.cs
@@ -18,37 +18,37 @@ namespace Encompass
             _componentManager = componentManager;
         }
 
-        protected Span<Entity> ReadEntities<TComponent>() where TComponent : struct
+        protected Span<Entity> ReadEntities<TComponent>() where TComponent : struct, IComponent
         {
             return _componentManager.GetExistingEntities<TComponent>();
         }
 
-        protected ref readonly Entity ReadEntity<TComponent>() where TComponent : struct
+        protected ref readonly Entity ReadEntity<TComponent>() where TComponent : struct, IComponent
         {
             return ref _componentManager.ExistingSingularEntity<TComponent>();
         }
 
-        protected Span<TComponent> ReadComponents<TComponent>() where TComponent : struct
+        protected Span<TComponent> ReadComponents<TComponent>() where TComponent : struct, IComponent
         {
             return _componentManager.GetComponentsByType<TComponent>();
         }
 
-        protected ref readonly TComponent ReadComponent<TComponent>() where TComponent : struct
+        protected ref readonly TComponent ReadComponent<TComponent>() where TComponent : struct, IComponent
         {
             return ref _componentManager.ExistingSingular<TComponent>();
         }
 
-        protected ref readonly TComponent GetComponent<TComponent>(Entity entity) where TComponent : struct
+        protected ref readonly TComponent GetComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
         {
             return ref _componentManager.GetComponentByEntityAndType<TComponent>(entity.ID);
         }
 
-        protected bool HasComponent<TComponent>(Entity entity) where TComponent : struct
+        protected bool HasComponent<TComponent>(Entity entity) where TComponent : struct, IComponent
         {
             return _componentManager.EntityHasComponentOfType<TComponent>(entity.ID);
         }
 
-        protected bool SomeComponent<TComponent>() where TComponent : struct
+        protected bool SomeComponent<TComponent>() where TComponent : struct, IComponent
         {
             return _componentManager.SomeExistingComponent<TComponent>();
         }
diff --git a/encompass-cs/Renderers/OrderedRenderer.cs b/encompass-cs/Renderers/OrderedRenderer.cs
index 56935f2..5b462b3 100644
--- a/encompass-cs/Renderers/OrderedRenderer.cs
+++ b/encompass-cs/Renderers/OrderedRenderer.cs
@@ -5,7 +5,7 @@ namespace Encompass
     /// <summary>
     /// OrdereredRenderer provides a structure for the common pattern of wishing to draw a specific DrawComponent at a specific layer.
     /// </summary>
-    public abstract class OrderedRenderer<TComponent> : Renderer where TComponent : struct, IDrawableComponent
+    public abstract class OrderedRenderer<TComponent> : Renderer where TComponent : struct, IComponent, IDrawableComponent
     {
         public abstract void Render(Entity entity, in TComponent drawComponent);
 
diff --git a/encompass-cs/UberEngine.cs b/encompass-cs/UberEngine.cs
index d0957bf..5d5378e 100644
--- a/encompass-cs/UberEngine.cs
+++ b/encompass-cs/UberEngine.cs
@@ -35,15 +35,14 @@ namespace Encompass
             }
         }
 
-        // we can't reflect invoke on Span returns right now... tragic
         public override void Update(double dt)
         {
             foreach (var type in _componentTypes)
             {
                 CallGenericMethod(type, "ReadComponent", null);
-                //CallGenericMethod(type, "ReadComponents", null);
+                CallGenericWrappedMethod(type, "ReadComponentsWrapper", null);
                 CallGenericMethod(type, "ReadEntity", null);
-                //CallGenericMethod(type, "ReadEntities", null);
+                CallGenericWrappedMethod(type, "ReadEntitiesWrapper", null);
                 CallGenericMethod(type, "GetComponent", new object[] { Entity });
                 CallGenericMethod(type, "HasComponent", 1, new object[] { Entity });
                 CallGenericMethod(type, "SomeComponent", null);
@@ -59,7 +58,7 @@ namespace Encompass
                 CallGenericMethod(type, "SendMessage", 2, new object[] { Activator.CreateInstance(type), 1 });
                 CallGenericMethod(type, "ReadMessage", null);
 
-                //CallGenericMethod(type, "ReadMessages", null);
+                CallGenericWrappedMethod(type, "ReadMessagesWrapper", null);
                 CallGenericMethod(type, "SomeMessage", null);
                 if (typeof(IHasEntity).IsAssignableFrom(type))
                 {
@@ -70,6 +69,23 @@ namespace Encompass
             }
         }
 
+        // we can't reflect invoke on Span returns right now... so we have non-return wrapper methods
+
+        protected void ReadComponentsWrapper<TComponent>() where TComponent : struct, IComponent
+        {
+            ReadComponents<TComponent>();
+        }
+
+        protected void ReadMessagesWrapper<TMessage>() where TMessage : struct, IMessage
+        {
+            ReadMessages<TMessage>();
+        }
+
+        protected void ReadEntitiesWrapper<TComponent>() where TComponent : struct, IComponent
+        {
+            ReadEntities<TComponent>();
+        }
+
         // trying to use PrepareMethod because we can't reflect invoke methods that return a span...
         private void CallGenericMethod(Type type, string methodName, object[] parameters)
         {
@@ -79,6 +95,13 @@ namespace Encompass
             // RuntimeHelpers.PrepareMethod(genericReadComponentMethod.MethodHandle);
         }
 
+        private void CallGenericWrappedMethod(Type type, string methodName, object[] parameters)
+        {
+            var readComponentMethod = typeof(UberEngine).GetMethod(methodName, BindingFlags.NonPublic | BindingFlags.Instance);
+            var genericReadComponentMethod = readComponentMethod.MakeGenericMethod(type);
+            genericReadComponentMethod.Invoke(this, parameters);
+        }
+
         private void CallGenericMethod(Type type, string methodName, Type[] types, object[] parameters)
         {
             var readComponentMethod = typeof(Engine).GetMethod(methodName, BindingFlags.NonPublic | BindingFlags.Instance, null, types, null);
diff --git a/encompass-cs/WorldBuilder.cs b/encompass-cs/WorldBuilder.cs
index 5da3d3a..9295844 100644
--- a/encompass-cs/WorldBuilder.cs
+++ b/encompass-cs/WorldBuilder.cs
@@ -183,7 +183,7 @@ namespace Encompass
         /// <summary>
         /// Adds the specified OrderedRenderer to the World.
         /// </summary>
-        public OrderedRenderer<TComponent> AddOrderedRenderer<TComponent>(OrderedRenderer<TComponent> renderer) where TComponent : struct, IDrawableComponent
+        public OrderedRenderer<TComponent> AddOrderedRenderer<TComponent>(OrderedRenderer<TComponent> renderer) where TComponent : struct, IComponent, IDrawableComponent
         {
             RegisterComponentType<TComponent>();
             renderer.AssignEntityManager(_entityManager);
@@ -354,7 +354,7 @@ namespace Encompass
                 throw new EngineWriteConflictException(errorString);
             }
 
-            PreloadJIT(_componentTypesToPreload, _messageTypes);
+            PreloadJIT(_messageTypes);
 
             var engineOrder = new List<Engine>();
 
@@ -388,7 +388,7 @@ namespace Encompass
         /// It does so by grabbing all component and message types known to the WorldBuilder and
         /// executing every possible generic method that could be executed with those types.
         /// </summary>
-        private void PreloadJIT(IEnumerable<Type> componentTypes, IEnumerable<Type> messageTypes)
+        private void PreloadJIT(IEnumerable<Type> messageTypes)
         {
             var dummyTimeManager = new TimeManager();
             var dummyMessageManager = new MessageManager(dummyTimeManager);
@@ -398,9 +398,30 @@ namespace Encompass
             var dummyEntityManager = new EntityManager(dummyComponentManager, _entityCapacity);
             var dummyRenderManager = new RenderManager(dummyEntityManager, dummyDrawLayerManager);
 
+            // doing reflection to grab all component types, because not all writes need to be declared
+            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
+            {
+                foreach (var componentType in assembly.GetTypes())
+                {
+                    if (typeof(IComponent).IsAssignableFrom(componentType) && componentType.IsValueType && !componentType.IsEnum && !componentType.IsPrimitive)
+                    {
+                        var method = typeof(WorldBuilder).GetMethod("RegisterComponentType", BindingFlags.NonPublic | BindingFlags.Instance);
+                        var generic = method.MakeGenericMethod(componentType);
+                        generic.Invoke(this, null);
+                    }
+
+                    if (componentType.GetInterface("IDrawableComponent") != null)
+                    {
+                        var drawLayerManagerRegisterMethod = typeof(DrawLayerManager).GetMethod("RegisterOrderedDrawable");
+                        var drawLayerManagerRegisterGenericMethod = drawLayerManagerRegisterMethod.MakeGenericMethod(componentType);
+                        drawLayerManagerRegisterGenericMethod.Invoke(dummyDrawLayerManager, null);
+                    }
+                }
+            }
+
             var prepEngineOrder = new List<Engine>();
 
-            var uberEngine = new UberEngine(componentTypes, messageTypes);
+            var uberEngine = new UberEngine(_componentTypesToPreload, messageTypes);
 
             uberEngine.AssignEntityManager(dummyEntityManager);
             uberEngine.AssignComponentManager(dummyComponentManager);
@@ -408,24 +429,10 @@ namespace Encompass
             uberEngine.AssignTimeManager(dummyTimeManager);
             uberEngine.AssignTrackingManager(dummyTrackingManager);
 
-            var uberRenderer = new UberRenderer(componentTypes);
+            var uberRenderer = new UberRenderer(_componentTypesToPreload);
             uberRenderer.AssignComponentManager(dummyComponentManager);
             uberRenderer.AssignEntityManager(dummyEntityManager);
 
-            foreach (var type in componentTypes)
-            {
-                var componentManagerRegisterMethod = typeof(ComponentManager).GetMethod("RegisterComponentType");
-                var componentManagerRegisterGenericMethod = componentManagerRegisterMethod.MakeGenericMethod(type);
-                componentManagerRegisterGenericMethod.Invoke(dummyComponentManager, null);
-
-                if (type.GetInterface("IDrawableComponent") != null)
-                {
-                    var drawLayerManagerRegisterMethod = typeof(DrawLayerManager).GetMethod("RegisterOrderedDrawable");
-                    var drawLayerManagerRegisterGenericMethod = drawLayerManagerRegisterMethod.MakeGenericMethod(type);
-                    drawLayerManagerRegisterGenericMethod.Invoke(dummyDrawLayerManager, null);
-                }
-            }
-
             prepEngineOrder.Add(uberEngine);
 
             var dummyWorld = new World(
diff --git a/test/ComponentTest.cs b/test/ComponentTest.cs
index 62050f6..9c6e2e7 100644
--- a/test/ComponentTest.cs
+++ b/test/ComponentTest.cs
@@ -8,7 +8,7 @@ namespace Tests
 {
     public class ComponentTests
     {
-        struct MockComponent
+        struct MockComponent : IComponent
         {
             public int myInt;
         }
diff --git a/test/EngineTest.cs b/test/EngineTest.cs
index ebc5f29..c5621fe 100644
--- a/test/EngineTest.cs
+++ b/test/EngineTest.cs
@@ -10,7 +10,7 @@ using Encompass.Exceptions;
 
 namespace Tests
 {
-    struct MockComponent
+    struct MockComponent : IComponent
     {
         public int myInt;
     }
@@ -618,7 +618,7 @@ namespace Tests
             world.Update(0.01f);
         }
 
-        struct DestroyerComponent { }
+        struct DestroyerComponent : IComponent { }
 
         [Reads(typeof(DestroyerComponent))]
         class DestroyerEngine : Engine
@@ -964,7 +964,7 @@ namespace Tests
             entity.Should().BeEquivalentTo(readEntity);
         }
 
-        struct MockComponentB
+        struct MockComponentB : IComponent
         {
             private int value;
 
@@ -1407,9 +1407,9 @@ namespace Tests
 
         public class QueryTests
         {
-            struct MockComponentB { }
-            struct MockComponentC { }
-            struct MockComponentD { }
+            struct MockComponentB : IComponent { }
+            struct MockComponentC : IComponent { }
+            struct MockComponentD : IComponent { }
 
             [Reads(typeof(MockComponent), typeof(MockComponentB))]
             [Writes(typeof(MockComponentB))]
@@ -1863,7 +1863,7 @@ namespace Tests
                 _components.Should().NotBeEmpty();
             }
 
-            struct MockTimerComponent
+            struct MockTimerComponent : IComponent
             {
                 public double Timer { get; }
 
diff --git a/test/GeneralRendererTest.cs b/test/GeneralRendererTest.cs
index 7ccc3ea..32659c0 100644
--- a/test/GeneralRendererTest.cs
+++ b/test/GeneralRendererTest.cs
@@ -5,7 +5,7 @@ namespace Tests
 {
     public static class GeneralRendererTest
     {
-        struct AComponent { }
+        struct AComponent : IComponent { }
 
         public class SingletonRead
         {
diff --git a/test/OrderedRendererTest.cs b/test/OrderedRendererTest.cs
index 2ee2af7..92cb3b8 100644
--- a/test/OrderedRendererTest.cs
+++ b/test/OrderedRendererTest.cs
@@ -9,11 +9,11 @@ namespace Tests
 {
     public class OrderedRendererTest
     {
-        struct AComponent { }
-        struct BComponent { }
-        struct CComponent { }
+        struct AComponent : IComponent { }
+        struct BComponent : IComponent { }
+        struct CComponent : IComponent { }
 
-        struct TestDrawComponent : IDrawableComponent
+        struct TestDrawComponent : IComponent, IDrawableComponent
         {
             public int Layer { get; set; }
         }
diff --git a/test/SpawnerTest.cs b/test/SpawnerTest.cs
index e31ed37..c0c5f0c 100644
--- a/test/SpawnerTest.cs
+++ b/test/SpawnerTest.cs
@@ -5,7 +5,7 @@ namespace Tests
 {
     public class SpawnerTest
     {
-        struct TestComponent { }
+        struct TestComponent : IComponent { }
         struct SpawnMessageA : IMessage { }
 
         static Entity resultEntity;
diff --git a/test/WorldBuilderTest.cs b/test/WorldBuilderTest.cs
index 871dce4..2f3e7d2 100644
--- a/test/WorldBuilderTest.cs
+++ b/test/WorldBuilderTest.cs
@@ -147,7 +147,7 @@ namespace Tests
                 public Entity entity;
             }
 
-            struct AComponent
+            struct AComponent : IComponent
             {
                 public int myInt;
             }
@@ -216,7 +216,7 @@ namespace Tests
                 public Entity entity;
             }
 
-            struct AComponent
+            struct AComponent : IComponent
             {
                 public int myInt;
             }
@@ -407,8 +407,8 @@ namespace Tests
         {
             static List<Engine> order = new List<Engine>();
 
-            struct AComponent { }
-            struct BComponent { }
+            struct AComponent : IComponent { }
+            struct BComponent : IComponent { }
 
             struct AMessage : IMessage { }
             struct BMessage : IMessage { }
diff --git a/test/WorldTest.cs b/test/WorldTest.cs
index f985dc1..6ce089b 100644
--- a/test/WorldTest.cs
+++ b/test/WorldTest.cs
@@ -11,8 +11,8 @@ namespace Tests
 {
     public class WorldTest
     {
-        struct TestComponent { }
-        struct TestDrawComponent : IDrawableComponent
+        struct TestComponent : IComponent { }
+        struct TestDrawComponent : IComponent, IDrawableComponent
         {
             public int Layer { get; set; }
         }