If you liked this
Games like B-Day-25
If you finished B-Day-25, the closest matches are Clannad, Lilycle Rainbow Stage!!!, Tsuki ni Yorisou Otome no Sahou, Umineko no Naku Koro ni: Beatrice no White Day and Umineko no Naku Koro ni: Gisho no.XXX. All 10 share its adventure genre and are ranked by how closely their themes and modes overlap.
