Epic Games has won a high-profile antitrust case against Google. Fortnite developers sued the tech giant for monopolizing the Google Play app store. This is reported by Reuters.

Epic Games accused Google of taking measures to eliminate competitors and charging app developers unreasonably high fees of up to 30%.

Among the accusations was that Google was illegally linking Google Play and the Google Play Billing service. This means that developers have to use both services to get their apps included in the store.

The jury found for Epic on all counts. In January, the court will start working on what remedies to apply. Epic Games welcomed the court’s decision, while Google announced an upcoming appeal.

The decision is a stunning setback for Google, which operates one of the world’s largest app stores. If the decision ultimately stands, it could give developers more power to influence how their apps are distributed and how they profit from them.