Demon Castle Story

7.22K reviews
Content rating
Rated for 7+
50K+
Downloads
Content rating
Rated for 7+
Mild 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
Nov 5, 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

6.96K reviews
esa pavlichenko
November 7, 2026
I'm a fan of Kairosoft games and i love almost all of them, but unfortunately i have to put a bad review for this one. This game has pretty serious balancing and unfair mechanics for players. On hard mode, adventurers will already have end game level and gears so even with carried out monsters from previous save game, they will be overpowered easily. And also they can rush their way to your overlord ignoring your monsters without engaging them in battle area / aggro. Even traps do no damage.
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Emma Archer
November 4, 2026
I searched high and low for a game that was playable for more than a day, wasn't full of ads and play to win features and didn't penalize players for being busy. This is the first in a long while that fits the profile. I will try other Kairosoft games.
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 😊
8 people found this review helpful
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What’s new

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