8.7 - 294 ratings
.io  -  html5  -  multiplayer  -  upgrade is a casual multiplayer game inspired by Agario. This game adds some new elements to the Agar gameplay, including equipment and speed controls. You can collect coins that are scattered around the map and use them to buy new things. These will increase your status and improve your maneuvers. There are 3 available modes: free for all, capture the flag, and solo. The other game mechanics are the same: eat objects and other players to grow bigger. Be careful of viruses: when you eat one you will split into many little cells. Have fun!

Game controls

  • Use your mouse to move
  • Double left click or space bar to split
  • Hold left click or W to shoot
  • Shift to enter slow movement
  • Ctrl to stop movement

Platforms is available as a browser game, and as mobile apps on Android and iOS.


This game is created by Freakinware Ltd.

Get on the App Store Get on the Play Store Video Walkthrough Walkthrough

This is an addicting .io game. It can be played here on CrazyGames, free of charge. The game uses HTML5 to run smoothly in all modern browsers. has received 13,791 plays and has been rated 8.7 out of 10 by 290 people. Did you like playing this game? Then also play our other .io games like and MLG Edition.

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