Google has to open up the Play Store. On Monday, US District Judge James Donato issued a permanent injunction forcing the company to open its storefront to competitors for three years and make Android apps available in alternate stores.

Google will have to distribute third-party stores in the Play Store and give third-party rivals full access to Google Play's catalog of apps, thanks to the latest ruling in its legal battle with Epic Games.

A U.S. judge issued a permanent injunction on Monday that will force Google to offer alternatives to its Google Play store for downloading apps on Android phones. The ruling from Judge James Donato in court in California is the most significant outcome from Epic Games' antitrust lawsuit against Google,