Bitten! Someone has to be a villain

Also known as Bitten! Someone has to be a villain, bitten someone has to be a villain, bitten-someone-has-to-be-a-villain

Multiplayer game (4-10 ppl) where traitors betray and kill other players while avoiding being noticed! Innocent players fight with zombies to pick up weapons and power-ups (like scanners to expose traitors). Players use voice or text chat to convince others they are innocent!