[Question] - How doable is this - craps.

I'm not super familiar with the rules of craps, but my understanding is it's basically just rolling some dice, right? The 3D Dice I would think could be especially useful here. Then you would just need a "background map" of a craps table, and some tokens that look like chips to place on the table.  The game itself wouldn't enforce the rules by default (e.g. roll a 7 (I think) and stop rolling, otherwise get a re-roll), so the GM would have to do that manually. But I think you could represent the actual craps table/experience pretty well. Of course you could use the API to enforce the rules but that would be a bit of work and not sure if it would really be worth it for a one-off mini-game :-)