Deeeep.io is a free online multiplayer math game in the IO list. Play and you will soon be addicted. Start off with a small fish located in the lowest level in the food chain. You should eat as much as possible to gain experience and evolve quickly. Not only that, Deeeep.io is a great environment where you can absorb bubbles to get stronger. There are a lot of predators surrounding. Avoid running into them to survive. Let's engage and take over the world right now!