3D Dungeon Generator 
This is an implementation of a rogue like dungeon generator using the Unity engine and a Google app engine back end written in Java.

Collision Detection & Response
Written in C# using the XNA Framework to test OBB and Sphere collision detection. The video shows several of spheres falling down a series of ledges.

Netcode with Client-side Prediction
Written in Java using the jMonkey engine for rendering and Mina for the networking. The video shows 3 clients connecting to a server and flying the clients around.