
Brutal stacking-action variant of classic UNO from Mattel (2023). Aggressive Draw 10 cards, action-card stacking, and an elimination 'Mercy Rule' make this UNO's harshest official edition.
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Turn timer
Keep turns moving with a per-player clock for UNO No Mercy.
Single round. Empty your hand first to win. Mercy Rule still applies — any player who reaches 25+ cards is eliminated.
Quickest format; no cumulative scoring.
Single round means more variance — play conservatively.
See the Standard variant for the full game guide.