Can we use prototypes or demos? (made by us). I mean, if we have a game in beta version, or a prototype which was already been submitted to another jam can we update it for this jam??
It's against the spirit of game jams to take work you've done before the event has started and then work on it for the duration of the jam and submit. However, nothing is stopping you from doing so, just remember you need to submit source along with your entry.
