This game is a variant based on the popular open source roguelike game Hengband.

It adds a number of Touhou Project-related elements to Hengband, as well as significant modifications to races, professions, magic, game systems, and more.

The game has a wide variety of dungeons, towns, quests, equipment, monsters, and other systems.

However, narrative guidance is kept to a minimum, perhaps intentionally, and the player is left to explore and gain experience in a world packed with these vast elements.