Riot Games, the creators of League of Legends, have created a new studio called Riot Forge. Riot Forge will be a publishing label within Riot Games who will work on developing games within the League of Legends Lore Universe. The games created under Riot Forge will be third-party studios, not directly Riot Games themselves. No games have been announced yet for the publishing label but the first game under them is expected to be announced during The Game Awards on December 12th.
Whether Legend of Runeterra, their upcoming fighting game, shooter, or adventure game are under Riot Forge remains to be seen.