What you get
Up to four players
Create a room and send the invite link or the four-letter room code to friends. Everyone plays in the same match from their own phone, tablet or computer. Empty seats can be filled with CPU players, so you can play on your own or in a smaller group.
Three arenas
Goo Factory is riveted steel over a pool of toxic goo. Lava Pit is basalt columns over churning lava. Sky Temple is polished marble and gold above the clouds. Each arena has its own music, or choose Mix for a different arena every round.
Three modes
Classic is pure sumo. Power-ups drops crates from the sky: Mega, Mini, Turbo, Spikes and Bomb. In Hot Potato a ticking bomb passes on contact, and whoever holds it when it goes off is blown sky-high. Play first to 2, 3 or 5 round wins.
See it roll

A round on Goo Factory, with power-ups on. 
The room: pick the arena, the mode and the match length.
How to play
- Open the game, type a name and press Create room.
- Share the invite link (Copy link) or the four-letter room code. Friends press Join and take a seat.
- The host picks the arena, the mode and how many rounds win the match, then presses Start match. Tick Fill empty slots with CPU players to play with fewer than four people.
- Roll your ball and ram the others off the platform. Dash makes your ball heavier for a moment.
- The platform shrinks through each round, and if time runs out it keeps shrinking until somebody falls. The last ball rolling wins the round, and the first to the target wins the match.
Controls
Keyboard
WASD or the arrow keys to roll. Space or Shift to dash. N switches the music on and off, M mutes everything.
Gamepad
Left stick or D-pad to roll. A, B, X or the right trigger to dash.
Touch
Drag on the left side of the screen to roll, and tap DASH to dash.
No account, no ads
You pick a name and the other players in your room see it. The game remembers your name and your sound settings on your device for next time. Sludge Sumo privacy policy · Help and support