The “Riot Records” dev team said that it wasn’t too difficult to settle on this genre considering the nature of the game: “Electronic music felt like the natural choice, both because of its popularity in the League community and because of the number of EDM artists with close ties to games and gaming culture.”
Riot is pulling in a number of artists to work on the project while giving them a lot of latitude as to what falls under the EDM umbrella. The team hopes that the album will give more energy to the ranked season and be something players would listen to outside of the game.
Source: Warsongs, League of Legends