Snowball.io is a sumo match played with snowballs. You push a growing snowball around a shrinking platform, rolling it through snow to make it larger, and throw it at other players to knock them off the edge. Bigger snowball, harder hit — and the arena keeps shrinking so nobody can hide.
Rounds last a minute or two and there is no account, which is the whole appeal. It has the same shape as every good .io game: one mechanic, immediate stakes, and a scoreboard.
Grow your snowball on fresh snow before engaging, then knock opponents off the edge — targeting players who are already near it. Avoid throwing when someone is close, because you're vulnerable while the snowball regrows.
You play against other players in real time in short elimination rounds, with no account needed.
Yes — it is a light browser game that runs with nothing to install.