Cool Math Acyd.io game is free for kids and adults to play online against multiple people. Similar to Agar.io, you need to dominate the playing field by growing in size as fast as possible. Wander around the world and gain mass for the own moon. Collet all of the smaller food orbs and stars and try to gather the energy that bigger guys while they are moving. But, be careful! they can turn on you whenever. Let’s choose the class you want and enjoy!
Use W to release mass in the mouse’s direction and thrust.