Previously known as League of Legends: Clash of Fates, League of Legends is a multiplayer online battle arena (MOBA) genre video game developed by Riot Games. It was designed to operate on the Microsoft Windows operating system. The game was first announced on October 7th, 2008 and released a year later on October 27th, 2009. The game was in beta from April 10th, 2009 to October 26th, 2009.

Two main protagonists for the popular Warcraft III mod, Defense of the Ancients: Allstars (commonly abbreviated as DotA), Steve 'Guinsoo' Feak and Steve 'Pendragon' Mescon are involved with Riot Games in the process of making of League of Legends. Guinsoo created DotA: Allstars from the original DotA, created by Eul, by adding his own mix of content, including over 40 heroes, numerous items, and various gameplay changes. Guinsoo then passed DotA: Allstars on to its current developer, Icefrog. Pendragon, who is the Director of Community Relations for Riot Games, helped create the DotA: Allstars website along with its forums, and is still currently working on DotA: Allstars alongsideLeague of Legends. The core game is free to play and new users can register an account here