The game publisher continues to wage war in its bid to get its mobile games on smartphones without the help of Apple and Google's storefronts.

While it’s turned on, it automatically keeps users from installing apps unless they come from “authorized sources” — namely, Google and Samsung’s app stores. Epic claims there’s no process for any rival store to become “authorized.

The “Fortnite” maker claims the tech giants colluded to place onerous restrictions on app stores created after Google lost an antitrust case.