Overview
At a glance
Is this game right for my group?
ABG editorial scores on a 1–5 scale.
Harder to teach
High replayability
Highly interactive
Scales well
Deep strategy
More strategic control
How it plays
How does it play?
Play oversized quantum trick-taking: declare each card’s suit, predict your tricks, mark the research board, and avoid creating a paradox.
Core mechanisms
Key systems that shape the decisions players make.
Trick-taking
Play one card each and award the trick according to suit and rank rules.
Hand Management
Time and sequence a limited hand of cards to preserve future options.
Predictive Bid
Bid on how well you expect to perform, then try to meet that prediction.
Enclosure
Surround spaces or pieces to claim territory, capture, or score.
Read the full game description
Colossal Cat in the Box scales the acclaimed quantum trick-taking game up for spectacle while retaining its central deduction puzzle. Number cards have no printed suit. When playing one, you declare its color and mark that number-and-color combination on the shared research board, making the claim unavailable to everyone else. Players must follow the declared lead color when their remaining possibilities allow it, yet every declaration reduces the legal states still available in hand. Before the round, each player predicts how many tricks they will win; successful bidding and connected clusters of research tokens score points, but a player who cannot legally declare a card causes a paradox and ends the round early. The edition includes the Doppler Effect and String Theory expansions alongside huge boards, tokens, and a cat miniature, while keeping the cards themselves comfortably playable.
