Games like Reikoku: Ikeda Kizoku Shinrei Kenkyuujo

If you finished Reikoku: Ikeda Kizoku Shinrei Kenkyuujo, the closest matches are Strangeland, Rusty Lake: Roots, Rhiannon: Curse of the Four Branches, Dark Fall 2: Lights Out and Necronomicon: The Gateway to Beyond. All 8 share its adventure genre and are ranked by how closely their themes and modes overlap.