[Pierre-Marie Baty]

I've came to think about it but...

In definitive, aren't the game rules something we may want to worry last, after we get a rendering engine and physics system working, and convincing player movement physics ?

Once we get these we can build any sort of game on top of it, very fast.

Every FPS game starts out by developing a crude deathmatch. Team code and game rules get added later, if one thinks about it.