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.

Epic Games takes on Google and Samsung in a new antitrust lawsuit, fighting for consumer choice in the app market.

As a federal judge weighs what corrective steps Google must take to remove barriers surrounding its Play Store, Cary’s Epic Games has accused the internet search giant of finding a new unlawful way to protect its Android app store monopoly.