Undo: Forbidden Knowledge

Undo: Forbidden Knowledge is a cooperative one-shot mystery card game from Pegasus Spiele, part of the Undo series. Players jointly reconstruct a sequence of events, working backwards through clue and decision cards with the help of time jump cards to change how the story ends.

Released in 2019, it plays 2 to 6 people aged 10 and over in 45 to 90 minutes. The box holds rules, story, clue and decision cards, time jump cards, stop cards and magnifying glass tokens.