Agar.io is a popular free-to-play action browser game where players must fight to survive as circular cells within a petri dish, eating smaller players and avoiding bigger ones to grow and last as long as possible. Play online with players around the world as you try to become the biggest cell of them all. Control your tiny cell and eat other players to grow larger but watch out: players bigger than you will be trying to make you their lunch. Survive and eat long enough to become the biggest cell in the game! Available on PC browsers, iOS, Android, and now Greenlit on Steam, Agar.io offers addictive gameplay that millions enjoy globally. Play online in free-for-all action and use splitting, shrinking and dodging tactics to catch other players - or avoid them! Use a variety of special secret skins with the right username!

Agar.io Key Features

Strategy - Split your cell into multiple parts, take advantage of the speed of a smaller cell - or the size of a larger one - and use position to your advantage. Agar.io is all about chaotic microbiological strategy! Hide behind a virus, or steer an enemy into one. It's a cell eat cell world!

Addictive - The game's replay value is amazingly high, as it is simple to understand, a rather insane amount of fun, and light-hearted; you swim around the petri dish and eat other cells! The bright colors, simple controls, and straightforward gameplay make Agar.io a game which can be enjoyed by anyone, anywhere, again and again.

Cell Skins - Players may customize the appearance of their cells with a personal photo, favorite meme, special colors... whatever they wish! Personalize your cell and stake your claim to the petri dish!

Millions of Players - Agar.io is insanely popular; with millions of players from all over the world! Agar.io is fun, free to play, and perfect for people on the go with both mobile and browser versions; no wonder it is so popular!