Agar.io - The smash hit game! Control your cell and eat other players to grow larger! Play with millions of players around the world and try to become the biggest cell of all!

Slither.io - Slither.io is a multiplayer online video game. Players control an avatar resembling a worm, which consumes multicolored pellets, both from other players and ones that naturally spawn on the map in the game, to grow in size.

Mitos.is - Eat cells or die trying!

Diep.io - Diep.io is a multiplayer action game available for web browsers, Android, and iOS, created by Brazilian developer Matheus Valadares. Players control tanks and earn points by destroying shapes and killing other players in a 2D arena.

Osmos - The full game includes 47 levels (plus "infinite" bonus content) across 8 distinct level...

Zombs Royale - 100 player 2D real-time massive multiplayer Battle Royale game in your browser, inspired by PUBG/Fortnite