Agar.io is a multiplayer action io game featuring circular cells. Players must control a circular cell and try to eat agar and smaller cells to become the biggest cell in the game.
In this game, you start with one small cell. To gain more mass and become the biggest cell in the game, you must move around to collect agar as well as smaller cells. The more you eat, the bigger you will become.
The game is over if larger players eat you. So try to stay away from them. An interesting part of the game is that you can split your cell into two evenly divided cells when it reaches a sufficient mass. This time you need to control multiple cells.
It is also important to stay away from spiky circles because they will break you into many smaller cells and cause you to be vulnerable and attractive targets to other players.
Agar.io unblocked is free to play on both Android and iOS devices. You can join a team or play it with your friends by sharing your server link.