Games like Toukankaku no Kuroi Toumei

If you finished Toukankaku no Kuroi Toumei, the closest matches are Fears to Fathom: Carson House, Milk Outside a Bag of Milk Outside a Bag of Milk, Your Turn to Die: Death Game by Majority, Someday You'll Return and Return to Shironagasu Island. All 10 share its adventure genre and are ranked by how closely their themes and modes overlap.