What's a game with a good mystery following a serial killer? Preferably with some supernatural/occult elements.
Until Dawn
Condemned: Criminal Origins.
>>384544747
Deadly Premonition.
Pathologic if you're willing to stretch your definition of serial killer.
Ghost Trick, kind of. Play it, you'll thank me later
Phoenix Wright probably. Condemned for sure revolves around a serial killer. So does Deadly Premonition (game is janky, but if you can get past that it has charm).
Still Life