Slither.io" is a popular online multiplayer game that was released in 2016. In this game, players control a snake-like avatar, which grows in size as it consumes multicolored pellets. The objective of this snake game is to become the longest snake on the server.

Players need to be cautious not to collide with other snakes, as that will result in the player's snake being destroyed and leaving behind pellets for other snakes to consume. The game is known for its simple yet addictive gameplay and has gained a large player base since its release.