AiAi is a Java-based general game playing engine based on Mogal (a GGP designed and developed by Stephen Tavener and Cameron Browne). Games can be hand-coded in Java for efficiency, or assembled from blocks using a scripting language based on JSON.
At some point, Ai Ai will move to this new location. Until then, you’ll find more information at http://mrraow.com/index.php/aiai-home/
Below, Ai Ai in action.