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.
In the context of the input sentence, determine the relationship between 'Civilization VI' and 'Firaxis Games'.
Options: developer, industry, distributed by, owner of