Momo1991: I think the rules would be like the nasty GA with one prize only - not sure how Xyem is thinking though.
It does seem that Wpegg had the idea first and put much more thought into it than I have. To be honest, my first thought was to find 4 people and give them the codes and then let people try to find them, but I figured that would be really disruptive to the general populace :)
I'm also considering having some flexible gameplay by using dogma. So basically, as long as all (or most?) players agree, they can change the mechanics/rules of the game. For example, in Wpegg's one, he acted as a verifier but that mechanic would have to be "dogma'd" into this game. If it is persistent across games, future players may remove it. Hopefully, this would both shake things up a bit and prevent the game from stalling.
triocks comment makes a lot more sense now. The more you know..