Starfield is described as 'The first new universe in 25 years from Bethesda Game Studios, the award-winning creators of The Elder Scrolls V: Skyrim and Fallout 4. In this next generation role-playing game set amongst the stars, embark on an epic journey to answer humanity’s greatest mystery' and is a Open World Game in the games category. There are more than 10 games similar to Starfield for a variety of platforms, including Windows, Steam, Linux, Mac and Xbox apps. The best Starfield alternative is No Man's Sky. It's not free, so if you're looking for a free alternative, you could try EVE Online or AstroImpact. Other Starfield like games are Space Engine, Qanga, Star Citizen and Starbound.