About game: Regret Island is a non-linear horror RPG hentai game with dating sim and visual novel elements. It offers multiple routes and different ways to solve problems. Characters can die permanently or descend into madness. Players must manage both their own and others' Lust & Insanity levels. Plot: A family and their friends embark on an overseas trip, deciding to stop for a day on a seemingly deserted island. As hidden emotions begin to surface, their pleasant excursion takes a dark turn. Can you navigate the treacherous waters of human nature and escape the island unscathed?​