Can you submit more than 1 game?
No, 1 game per person.It's not REALLY in the rules, but you'd be competing against your own game, so it doesn't really make any sense to do it. 馃
But maybe you have more than 1 idea. It is possible?
I'm not going to go hunting people down for having multiple games, but I'd advise against it. Better to spend the full time making 1 good game than 2 "meh" games. 馃槄
