Shinma Touki Den (English: The Legend of Demonic God) is a free moving shooting game developed in March 2008 by D.N.A.Softwares and ZUN. It is a Touhou fangame developed by D.N.A.Softwares. It is one of the few Touhou fangames to have been made with involvement from Touhou series creator ZUN.

With only three lives and three bombs the player controls the on-screen Patchouli Knowledge from a top-down perspective, defeating ever-increasing swarm of enemies and collecting the items they drop (enemies bombed will not drop items). There are six stages and no specific storylines. Players start the game with only stage 1 unlocked, while other can be unlocked by obtaining clear points from beating the medal scores listed for each stage.

Magus in Mystic Geometries is a Touhou fangame developed by D.N.A.Softwares. It is one of the few Touhou fangames to have been made with involvement from Touhou series creator ZUN.