Overall, I would say there is no level of knowledge *required*. You might even learn something new. (i.e. I got started with Unity at a jam). But I think it's important to communicate this to potential teammates. Usually there's a bit of mingling that happens during the first 30-60 minutes of a jam, and you can use that time to find a team in which you fit in.
gfxgangstaMember Since 06 Dec 2011
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