Demon Castle Story
by Kairosoft Co.,Ltd
- Games
- Paid
- Rating
- 4.9
- 400 ratings · US storefront
- Top 89%among 129 Games apps
- Last update
- Mar 18, 2026
- Version 1.45
- Size
- 102 MB
- Category
- Games
- Tracked since
- Oct 10, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
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.
Follow us on X (formerly Twitter) for all the latest news! https://twitter.com/kairokun2010
What’s new
Release notes for the latest version, as written by the developer.
Now available in English, Traditional Chinese, Simplified Chinese and Korean!
Rank history
Daily position in the Japan charts. #1 is at the top.
- Best rank
- #8
- Current rank
- #11
- Days charting
- 7 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
75/100
Not flagged as small & simple
- Developer size0% · 25
Developer: 100 apps on the charts
- Audience size100% · 20
Ratings: 400
- App size100% · 10
Size: 102 MB
- Price model100% · 15
Price model: paid
- Demand proof100% · 30
Best rank #3, 19 countries
An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2
How the score worksVersion history
- 1.45LatestReleased Mar 18, 2026