Plot: Agar.io is a massively multiplayer online action game created by Brazilian developer Matheus Valadares. Players control one or more circular cells in a map representing a Petri dish. Wikipedia
Plot: Slither.io is a multiplayer online video game available for iOS, Android, and web browsers, developed by Steve Howse. 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. Wikipedia...
Plot: Hole.io is a 2018 arcade physics puzzle game with battle royale mechanics created by French studio Voodoo for Android and iOS. Players control a black hole moving around an urban area. By consuming various objects, holes will increase in size, allowing players to consume larger objects as well as smaller...
Plot: Surviv.io is a browser based multiplayer online 2D battle royale game created by Justin Kim and Nick Clark. It was released in October 2017 for browser, and in October and November 2018 respectively for iOS and Android devices. Wikipedia