Utilize the input text as a context reference, choose the right relationship between Civilization and PlayStation 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.

On July 23rd, Firaxis Games released Ethiopia Pack as part of their bimonthly release of six downloadable content packs for the all-new Sid Meier's Civilization VI - New Frontier Pass for PlayStation 4, Xbox One, Nintendo Switch and PC.

Answer: platform