Play the original Gun Mayhem game where the goal is to stay on the island without getting knocked off. Choose your weapon wisely so that you can knock your opponents off. Grab creates to to get firearm upgrades. Gun Mayhem, shooter game, online shooter, survival shooter, free online game, shooting game, weapon upgrades, island survival, last man standing, FPS, 3D shooter, action game, competitive gaming, firearm upgrades, tactical combat, multiplayer shooter