Cell Wars is a 2D multitouch game using TUIO and Angel2D created for my studies.
Have a look at its open source and the elaboration.

Computer science and games
Download Work in progress! Description Ahoy, ye salty sea dog! Get some grog ‘n’ listen. Drunk’n Pirates will be a ridiculously hard and silly game. The main game mechanic are sea fights enabling different tactics like using a heavy broadside, sniping the enemy ships from distance, or simply ram them until they break. Players can …