Which fun board game can be translated as one many?

The board game you're thinking of is likely "One Night Ultimate Werewolf".

Here's why:

* One Night: This refers to the game's short playtime, usually only lasting a single night (round).

* Ultimate Werewolf: This signifies that it's a version of the classic Werewolf game with more roles and complexity.

* One Many: This translation highlights the game's core dynamic, where you're trying to figure out who is the lone werewolf among many innocent villagers.

Let me know if you'd like to know more about the game!