If you liked this
Games like Operation Sci-Fi: Hentai Girls
If you finished Operation Sci-Fi: Hentai Girls, the closest matches are Dark Desire Mute 6, Sword&Magic, Analistica Academy, Slave Pageant and Trinity x Calamity: Midara na Shitsuke to Owaru Sekai. All 10 share its game genre and are ranked by how closely their themes and modes overlap.
