Games like Eighteen

If you finished Eighteen, the closest matches are Super Danganronpa Another 2 ~The Moon of Hope and Sun of Despair~, Detective Instinct: Farewell, My Beloved, Heaven for Death, Danganronpa: Resort Killing and Koori no Haka Ichiyanagi Nagomu, Sandome no Junan. All 10 share its visual novel genre and are ranked by how closely their themes and modes overlap.