Ayakashi no Shiro

Japan, Sengoku period. The Ashikaga shogunate is about to fall to the rising daimyō Oda Nobunaga. Desperate, shogun Ashikaga Yoshiaki resurrects the ancient onmyōji Ashiya Dōman, planning to use his powers of magic and divination to defeat Nobunaga. But Dōman plans to conquer Japan himself and uses his magic to summon powerful monsters. The only way to defeat Dōman is the legendary Sword of Gohma, which Dōman has hidden in an abandoned castle. Nobunaga sends his most powerful ninja warrior to enter the castle and retrieve the blade.

Ayakashi no Shiro is a first-person dungeon crawler RPG that combines traditional Wizardry-like gameplay with a fantasy story set in feudal Japan. The ninja must explore the titular castle and fight monsters in turn-based battles to gain EXP to raise his stats. Items can be found that include various weapons, healing and recovery potions, as well as special ones like an invisibility cloak. Each level also contains a map that, once found, can be used to display the surrounding area. In addition to items, the ninja can use mystic arts (i.e. spells), of which twelve different ones are available, usable to attack, paralyze or confuse enemies, heal the ninja, and more.

The castle consists of five different areas, with around a dozen levels in total. Between the different areas, the game can be saved and items be stored and retrieved.