Hey may I ask where you find these games/ns? I played another detective/PI one like this a while back but i cant remember its name. honestly i thought it was this one
Hey! I've played two other detective themed VNs:
https://moolahmilk.itch.io/deviant-anomalies
https://store.steampowered.com/app/1137410/Depraved_Awakening/
The first also deals with supernatural themes, but I can't tell you much about the second because I didn't enjoy the short amount of time I spent playing it.