Alis.io is an awesome but aggressive multiplayer battle IO game freely available to internet users. Those online can join the adventure if they are online and have a stable connection. There are many interesting features that make this game great.
The main goal in the game is to develop your character and grow as big as possible. You can do that by eating the opponent's characters, and you should not stop until you become the largest player on the platform. However, you can only eat smaller characters than your own, and you have to avoid the bigger ones in order to survive the game.
When you start the game, your size will be very small and the best way to grow at the beginning is to wait for bigger enemies to enter prickly circles and explode. Then, you will have a chance to eat the small pieces of their bodies.