Community‑created mods range from simple UI tweaks (e.g., a Chronometer that displays split times) to full‑blown fan‑made stages that reinterpret classic Touhou bullet‑hell patterns.
Touhou Luna Nights ships with a lightweight modding API called Luna Mod. The modding/ folder in the zip contains: file touhoulunanightsv1246zip
Extract
Run the Game
First‑Time Setup
Optional – Enable Steam Features