Soviet Life Sequencer, War Machine, & PCO are out.
Free. Creative Commons.
paperkettle.com/home

Not sure what this is all about? The basic gist is that these games are played using OSC messages, rather than hard wired controllers. This allows you to connect them in LOTS of unique ways, and it means you can play them with any interface imaginable (think: midi controllers, other games, music software - anything that supports OSC). It also means they can be used to control other software, create music, remix poetry, etc etc. More on this notion of "patchable games" here:
paperkettle.com/codebending/

Other news:

·Are you on Google+? Circle me & say hello!
paperkettle.com/+

·I’m opening a waiting list for “codebending” / patchable instruments similar to the illucia unit seen in my videos. More info here:
paperkettle.com/blog/waveone/

·Community forums are live, and Game Framework for Processing announced - beta in early Fall.
paperkettle.com/blog/community-forums-are-live

(No working controllers were harmed in the making of this video - you're witnessing the birth of a video game instrument prototype, made from a broken controller)