.io games there are lots of .io games like Slither.io, Diep.io, and Agar.io.
Slither.io is a game where you are a snake and collect mass to get to the leaderboards. You kill other snakes to collect mass too.
Diep.io is a game where your a tank and there’s a red team and a blue team you have balls and your supposed to shoot them at the team that your not on.
Agar.io is a game where your a circle and your supposed to collect mass just like Slither.io. But your supposed to go over another circle and you immediately grow bigger.