Games like Touhou Koukayaku The Game

If you finished Touhou Koukayaku The Game, the closest matches are Touhou Luna Nights, Touhou: New World, Touhou Koumakyou: The Embodiment of Scarlet Devil, Koumajou Remilia Ⅱ: Stranger's Requiem and Touhou Tenkuushou: Hidden Star in Four Seasons. All 10 share its adventure genre and are ranked by how closely their themes and modes overlap.