League of Legends (or LoL) is a multiplayer online battle arena (MOBA) genre video game developed by Riot Games. The game was first announced on October 7, 2008 and released a year later on October 27, 2009.
Players are formed into two teams comprised of five members. Each team starts at opposing sides of a map, near what is called a "Nexus". To win a match, a team must destroy the opposing team's Nexus. To do so, each team must work through a series of towers called 'turrets' that are placed along three paths to each base (commonly referred to as 'lanes') Along the way, each player gains power by completing game objectives, earning them experience points and gold that are used to increase the player's level and to purchase powerful items, potentially giving players an advantage over their opponents. Examples of these objectives include killing the opposing team's turrets, players, and 'minions' (small NPCs that constantly spawn and attack the other team).