SumoBall.io
Bump rival sumo balls off the arena to be the last one standing.
Played it?
Or try Fanto's Mega-Mart or Eyrie next
Play next
Did it work on your phone?
Do any of these fit SumoBall.io?
About the game
You control a sumo ball in an online arena and try to knock every other player off the platform.
Fast multiplayer rounds. Easy drop-in and drop-out play. A win for the last ball left on the platform.
netpro2k took the idea from the sumo minigame in Fusion Frenzy and the bumper balls in Mario Party. The project started with quick multiplayer rounds, and they built the rest by feel.
Something wrong with this game?
You can also email us at hello@gamesbyai.win and tell us what you found.
How it was made
Source: Vibe Jam 2026 submission form. Evidence: the creator's own account.
- Added
- Code by AI
- Most of it
- AI provider
- OpenAI
- AI tools
- Codex
- Engine
- Three.js
- Players
- Online multiplayer
- Jam
- 2026 Vibe Coding Game Jam, rank 371 of 945

Screenshots
Made a video of SumoBall.io?
Link this page in your video's description, then send us the video. We go through new ones every day, and once we've reviewed yours it shows up here with your channel's name on it.
Questions
Can I play SumoBall.io with friends?
Yes. It has online multiplayer, so friends can join from their own computer or phone without being in the same room.
More like this
, Online multiplayerUndersphere
Run and shoot opponents on the inside surface of a hollow sphere.
, Phone friendly , Online multiplayerSwingers
Swing with friends to rack up the most damage to city infrastructure.
, Phone friendlyTECHNICAL DEBT
Juggle groceries, debt, and clutter for a family chasing a vacation, then restart.
, Phone friendly , Online multiplayerThe Rite
Fight other players in a fast multiplayer arena shooter in your browser.
