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.

Agar.io Clone - A simple Agar.io clone built with socket.io and HTML5 Canvas on top of NodeJS.

Curve Fever - Curve Fever is a Free to play Multiplayer Strategy video game in which the player spawns as a dot at a random spot on the playing field and move at the constant speed.

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

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.

Mitos.is - Eat cells or die trying!