The theme will be 'Open space' and you will have a total of 40 hours for coding (i.e. writing code and debugging). The 40 hours can be broken up however you wish, but please do not use more than 40 hours. 

Art, music, level design, planning, brainstorming, and playtesting do not count towards your 40 hours. This is why the theme has already been announced. 

Honestly, this is all for fun, there aren't really winners, just people who do better than others.