Utilize the input text as a context reference, choose the right relationship between Xbox One and Microsoft from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

Its main rivals in the business are Sony Corp. with the PlayStation machines and Microsoft Corp. with the Xbox One machine.

Answer: developer