League of Legends (also called LoL) It´s a multiplayer online battle arena (MOBA) and electronic Esport developed by Riot Games.

The game consists of 3 current running game modes: Summoner's Rift, Twisted Treeline, and Howling Abyss. The games last between 20 and 60 minutes.
In each game mode teams work together to achieve a victory condition, typically destroying the core building (called the Nexus) in the enemy team's base after bypassing a line of defensive structures called turrets, or towers (In the image, the points are turrets). The champions can level up, and can go up to level 18. When a champion dies, they have to pass certain seconds so that they revive.
The players control characters called champions, everyone has different skills.
There are three roles: Top in the toplane, jungler in the jungle, midlaner in the mid lane and AD carry and support in the botlane: