Ro Sham Posse
For 10+ players.
This is a way to decide a “winner” out of a large group of people. Everyone spreads out, and once the game begins starts challenging people to rock-paper-scissors. Establish the rules (on shoot vs on three, best of three vs best of one) before you set people free! If you lose, you introduce yourself to the victor and then you follow them around cheering them on as their posse. If they lose, you join the victor’s posse. At the end there will be one final one-on-one with two giant posses cheering on the contestants.