AppGameKit for Raspberry Pi - It's FREE! .

Creating games for Raspberry Pi has never been easier with AppGameKit for Raspberry Pi.

Create games using AppGameKit's same powerful & easy to code syntax, combined with
additional features for the Raspberry Pi such as reading & writing to the digital GPIO pins.

AppGameKit provides a fast and reliable gaming engine, allowing you to simply code your
games in the AppGameKit for Raspbery Pi IDE;
http://www.appgamekit.com/agk-pi/