Can I add to this question a couple of related ones?
Are multiplayer games okay? Couch multiplayer? Online multiplayer?
"any games engine you wish as long as it is accessible to the judges" -> I'm guessing that means web version and/or export on major computer systems?
If the game cannot be finished in the expected game length, or is designed for consecutive playthroughs (e.g. branching narrative), can we provide a short text or video for the jury to look at after playing the game that sums up what they might not have seen?
Thanks!