Demon Castle Story

6.98K reviews
Content rating
All ages
50K+
Downloads
Content rating
All ages
Violence
Learn more
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About this game

A management simulation in which you take an old, run-down castle and turn it into a dastardly demon stronghold! Recruit unique monsters as your minions and vanquish adventurers who dare to enter your realm!

Install gargoyles, ritual altars, and other devilish decor to boost your castle's mystique and attract more monsters your way. Gift them food and other items to help them grow, and garner their support to fend off pesky adventurers.

You can also send your monster minions out to explore nearby dungeons and towns. They'll bring you back items and other loot, and maybe even some new allies!

As you progress, you can also start merging monsters together to make new ones.

And don't forget traps—essential equipment for proper castle defense! Develop a range of traps like sleep-inducing gas and heavy washbowls to thwart any who cross the threshold of your demonic haven! By placing and combining traps in imaginative ways, you can make your fortress of fiendishness virtually impregnable!

Fend off attacks from mighty adventurers and keep your minions sweet to become the biggest and baddest demon overlord of all time!

Search "Kairosoft" to see our other games. https://kairopark.jp
We've got a whole range of free and one-time-purchase games to enjoy, many of which might feel familiar!
This is the Kairosoft 2D pixel art game series.

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Demon Castle Building Dungeon Management Simulation
Updated on
Jun 17, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection

Ratings and reviews

6.72K reviews
Ben Bassano
July 24, 2026
Its simple but addicting. There's a few problems I have: - There is a bug with the save trap(the one that gives adventurers an extra life), there is a rare chance that it makes it so your monsters will not fight them and they go right for your treasure with no way to stop them at all. - After your first run, please add an option to disable all the tutorials and unnecessary messages. - It'd be nice if you could send out more than one explore party at a time.
1 person found this review helpful
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Red Fang
August 17, 2026
Okay, so this turns out to be more of a tower defense game than a pure simulation. Since you guys are simulation experts, maybe in the next installment you could add a castle management mode—where, alongside tower defense, we can also launch attacks against the enemy. Also, throw in classic monsters like vampires, werewolves, and so on. I’m sure it’ll turn out to be a perfect game 😊
2 people found this review helpful
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Nicholas Roderick
July 5, 2026
I've been obsessed with this game since I got it. I have hundreds of hours playing. The gameplay is incredibly fun, and the challenges are unique and challenging! There's a lot to learn throughout the game but it's never overwhelming. I wish I could've paid more for this game. it's truly that good. The only real criticism I have about Demon Castle Story is that you have to have a wall behind certain traps so they can't be accessed from the other side, but it doesn't take away from the game.
6 people found this review helpful
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What’s new

Now available in English, Traditional Chinese, Simplified Chinese and Korean!