Microsoft is officially banning emulators from Windows Store. The company has updated the Windows Store policy to announce the changes. The new rules bar any applications that emulate pre-existing game systems, resulting in the removal of a popular program that supported games from Nintendo and Sega and other consoles. From a report on ArsTechnica: An affected developer was notified of the change on Tuesday when its product, Universal Emulator, was delisted from the Windows Store. While no proof of a letter or notice from Microsoft was published, the developers at NESBox linked to relevant changes in the Windows Store application rules, dated March 29, which now include this line: "Apps that emulate a game system are not allowed on any device family." This list of general Windows Store rules, written for developers, received a massive update to its "Gaming and Xbox" requirements; these used to contain only one sentence, and it referred hopeful Windows Store game developers to the ID@Xbox program. That existing program requires pre-approval by Microsoft, but developers will soon be able to publish their games directly to both Xbox and Windows 10 marketplaces by paying a one-time fee of $100 or less as part of the Xbox Live Creators Program.