A Japanese "yokai" castle-maze adventure inspired by the real-time first person dungeon RPGs of the 1980s. Infiltrate the mysterious Hyakki Castle that appeared in a land of exiles as part of a secret anti-supernatural government group and defeat its master!
All Reviews:
Mixed (13) - 53% of the 13 user reviews for this game are positive.
Release Date:
Nov 14, 2017

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Recent updates View all (11)

March 14

"HYAKKI CASTLE" price change!

Hi there!

It has been four months since we released "HYAKKI CASTLE".
We appreciate to everyone who sent feedback to us.

We have decided to lower the price so that more users can enjoy "HYAKKI CASTLE".
Now enter the Hyakki Castle!

Thank you!
7 comments Read more

December 20, 2017

New Update now live - Free Dungeon Map “The Last Fight with Doman” Now Available!

Hello everyone!

We are really excited to get this update out!

We released a variety of significant patches based on direct feedback and requests from players and fans since Hyakki Castle first launched on Steam on Nov. 15, 2017, including an improved “new game” instructions, improvements to user-interface, and other quality of life issues.

Enter the Haunted Halls of Hyakki Castle With Free Bonus Content, and Major Post-launch Updates!

Latest update information
  • Added free dugeon map
    After clearing the main story, the "The Last Fight with Doman" extra dungeon becomes available to challenge at different difficulty levels. Bosses from the main story await you in the new dungeon, and with new attacks.
    * The time it takes to clear the extra dungeons will be recorded in your stats.
  • Operating instructions have been made more clear.
  • Some skills have been changed.
  • Other issues have been fixed.

For news and updates follow us on:
Twitter : https://twitter.com/AsakusaStudios

Thank you!
2 comments Read more


“If you’re in for some meditative classic gaming, Hyakki Castle is for you.”
8.5 / 10 – Paste Magazine

“It was a nice, even split, but then Asakusa Studios landed on the scene with Hyakki Castle, which mixes the western approach to the ‘crawl with an entirely Japanese aesthetic and theme. And it’s so, so good.”
4 / 5 – Digitally Downloaded

7.9 / 10 – IGN JAPAN

About This Game


Hyakki Castle is set in the Edo Period of Japan, and the castle is on an island of exile where criminals are sent. Doman Kigata, a prodigy sorcerer who schemed to overthrow the Shogunate and place a death curse on a leader, has been captured and sent to the island. One day decapitated heads were sent to Edo Castle. It was the barely recognizable form of Hyakki Castle guards and criminals. "My offering to you, contents: 3 heads - The Lord of Hyakki Castle" News of a mystical castle appearing on Hyakki Island had already reached the Shogunate's search team. Iemune, the current Shogun of the time, believed this to be the doing of Doman Kigata. The investigation of Hyakki Castle and the assassination of Doman Kigata were appointed to 4 secret agents (the player)...


  • It is possible to divide the parties of 4 into 2 parties (2:2 people or 1:3 people) at any given time. (* Only when party is together.)
  • Divide into 2 parties to work your way through various traps. Use one team to open a door with a switch, while another party passes through the door to get an item, and then go back to maneuvering with the first party...

View of the World ~ A true Fantastical World of Japan created by a Japanese studio ~

A slew of creepy monsters, such as the "Yokai" of ancient Japanese literature, have been brought back to life, ready and waiting for the player at "Hyakki Castle"!

When making characters the player can choose from traditional Japanese classes, such as Samurai or Ninja, and can choose from different races, such as Oni or Tengu.

The player can choose from different traditional Japanese classes such as Samurai, Ninja, Monk, etc. Different races, such as Oni, Tengu, and Nekomata, can also be chosen, each having their own special ability.

The player can set skills they've acquired, such as attacks and spells!

Each character can equip up to 4 "actions" at the same time, such as attacks, defenses, projectiles, and spells.

Death over dishonor... "Seppuku", a skill where you take your own life!

All of the player's characters commit Seppuku, in which they all take their own lives. Seppuku is an act of the Japanese Way of the Samurai, in which one takes their own life to protect their honor. Choose an honorable death by Seppuku over the dishonor of being killed! (Dead characters will be revived at a save point inside the castle.)

- Hyakki Castle is compatible with a keyboard and mouse, or a controller.

System Requirements

    • Requires a 64-bit processor and operating system
    • OS: Windows® 7 64bit/ Windows® 8.1 64bit / Windows® 10 64bit
    • Processor: Intel® Core™ i3 2100 or AMD A8-6500
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 770 VRAM 2GB or AMD Radeon R9 270X VRAM 2GB
    • DirectX: Version 11
    • Storage: 3 GB available space
    • Sound Card: DirectX® 11 Compatible
    • Additional Notes: Mouse, keyboard and game pad (XInput), Screen resolution : 1280 x 720
    • Requires a 64-bit processor and operating system
    • OS: Windows® 8.1 64bit / Windows® 10 64bit
    • Processor: Intel® Core™ i5 4670 or AMD A10-7850K
    • Memory: 8 GB RAM
    • Graphics: NVIDIA GeForce GTX 980 VRAM 4GB or AMD Radeon R9 380X VRAM 4GB
    • DirectX: Version 11
    • Storage: 3 GB available space
    • Sound Card: DirectX® 11 Compatible
    • Additional Notes: Mouse, keyboard and game pad (XInput), Screen resolution : 1920 x 1080
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