Oh that's pretty cool. I got this game downloaded to my phone called Pinkamena, and pretty much sounds just like that. Gotta figure out who the 4 changelings and the mystery murder Pinkamena is, and hang them, but without accidentally hanging your own townsfolk. Townsfolk are anonymous, you don't know their identity. But they have abilities to help discover Pinkamena and the Changelings. Every night, the changelings kill somepony OTHER THAN Pinkamena. Pinkamena randomly kills on nights, with a chance to kill a changeling or a pony.
