Werewolves Online

Play as one of the werewolves or help them as minion, or join the village as seer, robber, witch, troublemaker or insomniac and try to figure out who the werewolves are. You may even want to pretend you are werewolf if playing as tanner or join any team playing as doppelganger.

This is a very fast adaptation of social deduction game mafia, in which you can play starting from 3 players. There is only one night, during which everybody does something based on their initial assigned role. Almost all the actions are independent, so you can start executing them immediately on your device instead of waiting for your turn. This way night usually takes 2-3 seconds and you can start discussing what happened right away.