Build your own Japanese castle, command your troops, and face epic battles in a cute crafted world based on real Japanese terrain. Featuring beloved characters like Zundamon and Kiritan, this strategy game blends history, humor, and tactical depth. No prior knowledge required—just bring your wits!
General / Cinematic | KIritan Castle Early Trailer eng
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Early Access Game

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Note: Games in Early Access are not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“To take user feedback and make this game better. Please contact us on the Steam forum.”

Approximately how long will this game be in Early Access?

“For about a year.”

How is the full version planned to differ from the Early Access version?

“The addition of diplomatic elements with other countries, regional festival elements, entertainment facilities, and events based on legends from the Sengoku to Muromachi periods is planned.”

What is the current state of the Early Access version?

“The basic gameplay is already implemented, and you can play through the main story on four difficulty levels, ranging from Easy to Very Hard.”

Will the game be priced differently during and after Early Access?

“We plan to gradually raise the price as we ship new content and features.”

How are you planning on involving the Community in your development process?

“Adjusting the difficulty based on feedback and using it as a reference to determine what elements are preferred when adding new features.”
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About This Game

Genre: Strategy / Tower Defense / Historical Simulation

Build, Defend, and Reign Supreme in Feudal Japan!

Step into the role of a legendary daimyo in Japanese Castle Strategy Zundamon Castle, a unique blend of tactical warfare, historical simulation, and castle-building strategy. Command your armies, design your perfect fortress, and repel waves of invading forces using traditional Japanese buildings, clever formations, and cunning tactics.

Features:

🛡 Authentic Japanese Castle-Building
Craft your own fortress with moats, stone walls, watchtowers. Every design choice matters—one weak point could spell your downfall!

Real-Time Tactical Battles
Lead your troops in large-scale battles inspired by feudal-era Japan. Time your commands carefully and adapt to changing battlefield conditions.

🎭 Zundamon Joins the Fight!
Zundamon, the adorable and mysterious castle guardian, brings unique abilities and unexpected humor to the front lines. Rally her powers to protect your stronghold!

🗾 Historical Meets Fantasy
Experience the perfect fusion of history and imagination. While the characters and story include mythical elements and original creations, the game world is grounded in reality—featuring detailed, authentic Japanese landscapes generated using official geospatial data from the Geospatial Information Authority of Japan (GSI). Build and battle on realistic terrain that mirrors actual regions of Japan, adding a new layer of depth to your strategic planning.

Who Are Tohoku Kiritan and Zundamon?

Tohoku Kiritan and Zundamon are regional characters created by a Japanese company called SSS LLC in 2011, the same year as the Great East Japan Earthquake. They were designed to promote and support the revitalization of the Tohoku region.

Zundamon, in particular, gained massive popularity in Japan after a free synthetic voice based on the character was released in 2021. Since then, they've become widely known through voiceover videos on platforms like YouTube and have built a strong fanbase across the country.

Voxel Castle Builder: Kiritan Castle is a fan-made game where these beloved characters take center stage. But don’t worry—no prior knowledge of Kiritan or Zundamon is needed to enjoy the game. It’s designed to be fun and accessible for everyone, whether you're a longtime fan or meeting them for the first time!

AI Generated Content Disclosure

The developers describe how their game uses AI Generated Content like this:

Generative AI is used as an auxiliary tool for the translation of the store page and the main game (English and Chinese).

System Requirements

    Minimum:
    • OS: Windows10
    • Memory: 4 GB RAM
    • Storage: 1 GB available space

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