The PlayStation 5 adds another game to its first-party stable this week with Housemarque’s Saros . Like the studio’s previous effort Returnal, this new title is a third-person roguelike set on an alien world where nearly everything is hostile in some way and death is a sure thing. However, Saros sports many key differences from its predecessor, particularly on a narrative level. As Arjun Devraj , players explore the planet Carcosa to learn how it’s affected his Echelon IV crewmates, previous Echelon teams before them, and ultimately Arjun himself. If Returnal had a simple setup, this one is more involved, largely because it’s not as solitary an experience: throughout the game, Arjun interacts with several other characters, mostly in the Passage hub between runs.…