Games like Umineko no Naku Koro ni: Arigato for 556

If you finished Umineko no Naku Koro ni: Arigato for 556, the closest matches are Shinjuku Soumei, Sagashimono ha, Natsu desuka., Aeryth, Tsuki ni Yorisou Otome no Sahou and Muv-Luv Photonmelodies. All 7 share its adventure genre and are ranked by how closely their themes and modes overlap.