I hope this is the right section for this.
Since we have GDC at the moment, and I read that Mafia was often played at GDC in the distant past, I post this browsergame
http://www.blankmediagames.com/
It's inspired by
Mafia (not the 3D game), which means it's a game where you basically choose an anon name, lie your ass off and try to get people hung/killed. Depending on your role of course. If you're a townmember you try to lynch the bad guys.
You can even help them on kickstarter:
https://www.kickstarter.com/projects/2002718381/town-of-salem-mafia-style-browser-game
Disclaimer: I'm not in any way related to the company. Just someone who plays the game.