About a week ago I participated in a game developing marathon called Indie9000 arranged by Unge Spiludviklere. I had never worked on a computer game before and it was the highest time to try it. I was a bit concerned when I saw that most of the participants were experienced in programming or in graphics. The topic this time was "adaption" and my group got inspired very quickly and went crazy with some Savanna stories. It was very intensive, we had less than 48 hours to develop our game. During the process I got a careful guide about how a game is designed and were allowed to work on some sub tasks, mostly on the vectorized graphic part of it.
Actually, it was fun! The game can be seen (and tried) here.