What is Agar.io?
Agar.io is the online cell-eating game that started the .io craze in 2015. Everyone shares one big arena, and every player is a coloured blob trying to grow by eating food pellets and anyone smaller than them.
You steer with the mouse, split your cell to lunge at prey, and eject mass to feed teammates or bait rivals. Bigger cells move more slowly, so the game is a constant trade between growing and staying safe. It is published by Miniclip and also has mobile apps.
Main Features
- Real-time free-for-all matches against players worldwide
- Split and eject mass tactics with simple mouse and keyboard controls
- Secret skins unlocked by typing special usernames
- Leaderboard showing the biggest cells in your server
- Extra modes such as teams and experimental arenas
- Runs in the browser with no download
How to Get Started with Agar.io
- Open agar.io in a desktop browser.
- Type a nickname and press Play.
- Move the mouse to steer, eat pellets and smaller cells, and avoid bigger ones.
- Press Space to split and W to eject mass when you want to attack or escape.
Agar.io Pricing
Agar.io is free to play in the browser with ads. Coins, skins and boosts can be bought in-game, but you do not need them to play.
Who Should Use It?
- Anyone wanting a quick game in a short break
- Fans of competitive .io games
- Players who like simple rules with real tactics
- Friends who want to play on the same server
Agar.io Alternatives
- Skribbl.io: multiplayer drawing and guessing game
- Line Rider: sandbox physics drawing game
- RetroGames: classic arcade games in the browser
Frequently Asked Questions
Is Agar.io free?
Yes. The browser game is free with ads, and optional in-game purchases such as skins and boosts are available.
How do you split in Agar.io?
Press the Space bar to split your cell in two and shoot half of it forward. Press W to eject a small amount of mass.
Do I need an account to play Agar.io?
No. You can type a nickname and play straight away. Signing in is only needed to save progress and purchases.