Slime Siege

Slime Siege is a free action game made with AI by @robin36, and you can play it right here in your browser.

Grab a friend — the slimes are coming!

Slime Siege is a cozy co-op arena brawl for 1–4 players. Your squad of chunky little heroes defends a glowing campfire for 10 waves of squishy invaders, all painted in warm pixel art under a dusk sky. Punch slimes, scoop up their loot, and keep each other standing.

Play together, any way you like

• Solo — one hero, ten waves, no mercy.
• Local co-op — two heroes on one keyboard (WASD + Arrows).
• Online co-op — up to 4 heroes over a short room code. The host runs the siege; everyone shares the loot.

Stick together or get squished. A downed hero isn't out — stand beside them and haul them back up. If the whole team falls, you burn one of three team rescues and get back into the fight.

Spend your loot at the camp shop. Between waves the whole team shares one purse: sharpen your punches, lace up swift boots, grow your hearts, or pass around a plate of team snacks. Three slime flavors keep you honest — fast reds, tanky purples — and every fifth wave a crowned King Slime waddles in with backup.

Clear all ten waves and the meadow is safe. Lose all three rescues, and the slimes throw their own party.