One Night Ultimate Werewolf is a fast-paced game where everyone gets to be a different role. In the course of only one night and the following morning, the players will determine who among them is a werewolf...hopefully. One Night Ultimate Werewolf is a micro game of the party game Ultimate Werewolf that doesn't need a moderator. There's no elimination and each game lasts about 10 minutes. For 3 to 10 players, ages 10 and up.