We're imagining that most of you are pretty tired from submitting your game to IGF this year. But if you're looking to make a smaller experimental game project that can also get you to GDC, our friends at Kokoromi have just announced the GDC 2010-affiliated Gamma 4 - with game makers challenged to make "innovative, experimental new games played with just one button".

You have until January 29th, 2010 to make a short one-button game, and the chosen games will be playable for all in a dedicated Gamma booth on the Game Developers Conference Expo floor, and showcased at a special gathering after the Indie Games Summit on March 10th. In addition, game creators who are selected for presentation at Gamma 4 will also be awarded GDC 2010 All-Access passes. There's more information on entry guidelines at the official Gamma 4 website.