The game must be web-based (what includes Flash, Unity, HTML5, for instance) and loosely built around one or more of the following themes:
- forking (or forks)
- branching (or branches)
- cloning (or clones)
The deadline is December the 1st. You have the whole month of November to work on your entry, which can be individual or as a team. Every participant will be awarded with an exclusive Coderwall badge; the game jam winners can get one of 5 shiny new iPads with Retina displays (64GB wifi models).
I love Github, but now I do even more with that game flavor! See the complete game jam announcement, rules and instructions here.