If you've ever played Mafia/Werewolf...

[Bill Bisco: Isometric Imp]

If you've ever played Mafia/Werewolf, you can play a version of it online for free at http://www.blankmediagames.com

Check it out, I've had some fun games with it.

[Chamomile]

Also EpicMafia. Whose page appears to be down right now, but as of at least a few months ago it was a thing.

[Bill Bisco: Isometric Imp]

Yeah, EpicMafia is pretty good too. This one seems to emphasize bigger games and graphics.