UNO No Mercy is the wildest version of UNO — now playable online with 2–12 players, completely free, no download needed. Features: 🃏 Full UNO No Mercy rules — draw stacking, color roulette, discard all, targeted draw ⚡ Real-time multiplayer rooms (public & private) 🏆 Knockout mode — last one standing wins 🎮 No account required — just enter a nickname and play 📱 Works on mobile and desktop