League of Legends developer Riot Games has a completed but unreleased card game on the backburner, according to materials leaked by a hacker.
The hacker shared images of League of Legends: Supremacy, a name Riot trademarked and registered as a domain last year, and although most have been deleted two Imgur galleries of templates and icons remain.
The hacker said Supremacy is a standalone game, that he had the server and client source, and that the project was full and complete but mysteriously unreleased.
"Someone shared some old screens from one of the many prototypes we've experimented with. We're always working on a variety of new ideas for League and beyond. Lots of experimentation that may never see the light of day," he said.