agario is a massive multiplayer online action game set in a Petri dish map. The goal of the game is to build a mass by eating other cells and avoiding the bigger ones. There are multiple players in the game, but you will only have one bubble at a time. This makes the game very challenging, so it's best to be patient and watch out for other players. If your network is slow, this can be frustrating, but fortunately, agar.io is available unblocked, and it's fun to play even on the busiest days.