Cyberpunk is never out of style, but one of the least used aspects of this sci-fi subgenre is how well it melds with dismal, oppressive horror.
Made by Blooper Team, who did the also fascinating Layers of Fear, Observer casts players Daniel Lazarski, a special brand of detective who can hack people’s minds as well as machines. Obsessed with finding his estranged missing son, Daniel finds himself trapped in a grungy run-down apartment complex that devolves into a techno layer of hell. The fact Daniel is modeled after and voice-acted by Rutger Hauer is icing on the cake.
The original PS4 is still an excellent and evocative trip, but for the shiniest (well, high-res grungiest) version, there's also Observer: System Redux specifically released on the PS5.