R.E.P.O

R.E.P.O. sends a lone operative through industrial facilities where parasites don't wait politely in rooms for you to find them, sectors stay hostile throughout, which pushes route-planning and ammo conservation into the same priority as raw gunplay skill.

Because facilities are dense with parasite spawns rather than a handful of scripted encounters, clearing a path methodically room by room tends to survive better than sprinting for an objective and leaving threats active behind you. Conserving stronger weapons for denser infestations rather than using them on isolated parasites keeps a loadout capable when a sector actually demands it. Half-Life covers similar atmospheric facility-clearing FPS ground with a stronger narrative thread.