Games like Cirno's Perfect Summer Vacation

If you finished Cirno's Perfect Summer Vacation, the closest matches are Touhou Luna Nights, Touhou Eiyashou: Imperishable Night, Nekopara Vol. 1, Touhou Suimusou: Immaterial and Missing Power and Touhou Makuka Sai: Fantastic Danmaku Festival. All 7 share its adventure genre and are ranked by how closely their themes and modes overlap.