Keno Lobby

1v1 Keno Survival Duel. Both players start with 3 lives and share the same lit tile and the same window. Tap it in time and you keep your life — claiming it before your opponent costs them nothing. You lose a life only when you miss: if you don't tap before the window closes, it is yours to lose (a tile neither of you taps costs you both). A 5s countdown gets you ready, then the window starts at 3s and tightens 100ms per claimed tile (floor0.5s). First to strip all 3 lives takes the pot 1.9× their stake, house takes 0.1×.