Agar.io
About Agar.io
Eat smaller cells and avoid bigger ones. Split and merge to dominate the arena. This version is optimized for browser play and works on most modern devices. Enjoy the gameplay without any downloads or installations.
How to Play
Agar.io is a massive multiplayer game where you control a cell. Move with the mouse; eat smaller cells to grow and avoid larger ones. Use split to shoot mass and W to feed. Team mode lets you play with a friend. The goal is to become the biggest cell on the server. If the game cannot be embedded here, use the 'Play on site' button.
Why This Game Is in the Collection
Agar.io is one of the most famous .io games. We list it for visitors who want online multiplayer across devices. Many .io games block embedding; when that happens we show a link to play on the official site.