Epic Games has filed a US federal court lawsuit in California alleging that a Samsung mobile security feature called Auto Blocker was intentionally built in cahoots with Google to dissuade users from downloading apps from all platforms other than Google Play Store and Samsung’s Galaxy store.

The case also asserts that the implementation of Auto Blocker, which was introduced to Samsung’s mobile devices last October, undermines the jury’s verdict in Epic Games’ previous antitrust suit against Google, which it won in December 2023. In that case, the jury found Google Play and its billing system to be an illegal monopoly.

In its latest beef, Epic Games is calling on the court to prevent Samsung from enabling Auto Blocker by default, and to prohibit Google’s and Samsung’s  “anti-competitive and unfair conduct.”

Epic Games, which is backed by Tencent in China, is demanding a jury trial to adjudicate this dispute, as well as requesting monetary relief, damages and the reimbursement of its legal costs.

Google has yet to issue a statement in response, but Samsung has vowed that it will “vigorously contest Epic Games’ baseless claims”.