Games like Getsuei no Kusari: Kyouran Moratoriamu

If you finished Getsuei no Kusari: Kyouran Moratoriamu, the closest matches are Taisho x Alice Episode 1, Psychedelica of the Ashen Hawk, Steam Prison, Collar x Malice: Unlimited and Heiligenstadt no Uta. All 8 share its visual novel genre and are ranked by how closely their themes and modes overlap.