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.

A U.S. judge on Monday ordered Alphabet's Google to overhaul its mobile app business to give Android users more options to download apps and to pay for transactions within them, following a jury verdict last year for “Fortnite” maker Epic Games.

“The provisions are designed to level the playing field for the entry and growth of rivals, without burdening Google excessively,” Judge James Donato wrote in the court order. “As competition comes into play and the network effects that Google Play unfairly enjoys are abated, Google should not be unduly constrained as a competitor.”