League of Legends is a is a multiplayer online battle arena (MOBA) esports video game developed and published by Riot Games for Microsoft Windows and macOS. In League of Legends, players play on a team and assume the role of a champion, characters with unique abilities, generally varying around a type of class, and battle against a team of player-controlled champions. In the main game mode on Summoner's Rift, the goal is to destroy the opposing team's Nexus, a structure that lies at the heart of their base and is protected by defensive structures.