Games like Oumagatoki: Kaidan Romance

If you finished Oumagatoki: Kaidan Romance, the closest matches are Spade no Kuni no Alice: Wonderful Black World, Arcana Twilight, Drastic Killer, L.G.S.: Shinsetsu Houshin Engi and Diabolik Lovers: Haunted Dark Bridal. All 8 share its visual novel genre and are ranked by how closely their themes and modes overlap.