How to Play Gun Mayhem IO

Use WASD and the mouse to move and aim. Shoot opponents to knock them off the island and grab crates to upgrade your weapon.

About Gun Mayhem IO

Stay on the island or get blasted off — that's the only rule. Gun Mayhem IO pits you against opponents in a frantic platform shootout where getting knocked off the edge spells defeat. Pick your weapon wisely, crack open crates for firearm upgrades, and outlast everyone else on the arena floor.

Gun Mayhem IO is a free Shooter Survival game you can play instantly in your browser — no downloads or installs required. Tagged .io, .io games, 3d, shooting.