Epic Games, the company behind Fortnite and Unreal Engine, just won a significant antitrust case against Google, meaning the Android mobile store must open up alongside other requirements. However, Google announced it's already appealing the order.

A federal judge on Monday ordered Google to tear down the digital walls shielding its Android app store from competition as a punishment for maintaining an illegal monopoly that helped expand the company’s internet empire.

Alphabet, Google’s parent company, faces numerous legal challenges in the US that, together, threaten its core business.