Games cannot cost money for participants in the jam to play. If you want to sell it outside the jam, that's cool, but it has to be free for everyone partaking in the jam to play and judge until the judging period ends!

This is something I think we at Mean Girls Games thought was already understood by most everyone in the jam, but we had an *ahem* questionable submission that was also a paid game and so we're clarifying in the spirit of, well, clarity, that Oktrollberfest is a jam rated by participants and as such the games need to be free. This is mainly so that if the previously "understood but unspoken" rule is broken, we can enforce it.