Games like Aikagi: Hidamari to Kanojo no Heyagi

If you finished Aikagi: Hidamari to Kanojo no Heyagi, the closest matches are Fate/Stay Night, Sexy Beach 3, Oppai Slider 2, Porno Studio Tycoon and Twins of the Pasture. All 7 share its adventure genre and are ranked by how closely their themes and modes overlap.