Playtime
HowLongToBeat · Medium confidence
Main Story
13m
Main + Extra
—
Completionist
—
Media
1 video + 8 screenshotsLinks
About This Game
Agar.io is a massively multiplayer online game where players control a cell in a colorful, grid-like environment. The main goal is to grow your cell by consuming smaller cells scattered throughout the map, while avoiding being eaten by larger cells controlled by other players.
Add Agar.io to your backlog
Import your Steam library in one click, then track what you finish and plan what to play next — free forever.
Last updated Mar 7, 2026