Demon Castle Story · Game information

20playing now

6624-hour peak

487all-time peak

44average, last 30 days

Last 30 daysAll timeLast four months

The last 30 days

−9.6Gain−17.7%% gain114Peak

717 hourly samples, with the daily peak drawn over them. Weekends are shaded.

Thursday 13 August 202635 peakFriday 14 August 202689 peakSaturday 15 August 202696 peakSunday 16 August 202693 peakMonday 17 August 202680 peakTuesday 18 August 2026103 peakWednesday 19 August 202682 peakThursday 20 August 202697 peakFriday 21 August 202678 peakSaturday 22 August 2026105 peakSunday 23 August 2026114 peakMonday 24 August 2026106 peakTuesday 25 August 202693 peakWednesday 26 August 202684 peakThursday 27 August 202666 peakFriday 28 August 202670 peakSaturday 29 August 202672 peakSunday 30 August 202686 peakMonday 31 August 202663 peakTuesday 01 September 202659 peakWednesday 02 September 202652 peakThursday 03 September 202646 peakFriday 04 September 202645 peakSaturday 05 September 202670 peakSunday 06 September 202659 peakMonday 07 September 202653 peakTuesday 08 September 202647 peakWednesday 09 September 202643 peakThursday 10 September 202640 peakFriday 11 September 202641 peakSaturday 12 September 202666 peak

Daily peakEvery hourly sample

All time

8 months, February 2026 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.

February 2026487 monthly peakMarch 2026152 monthly peakApril 202683 monthly peakMay 2026116 monthly peakJune 2026390 monthly peakJuly 2026232 monthly peakAugust 2026114 monthly peakSeptember 202670 monthly peak

Monthly peak

The last four months

Show:

All four monthsJuly 2026August 2026September 2026October 2026

The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.

July 2026232 peak — daily detail belowAugust 2026114 peak — hourly detail belowSeptember 202670 peak — hourly detail below

Monthly peakHas finer data

July 2026

31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

Wednesday 01 July 2026214 peakThursday 02 July 2026191 peakFriday 03 July 2026204 peakSaturday 04 July 2026232 peakSunday 05 July 2026226 peakMonday 06 July 2026203 peakTuesday 07 July 2026207 peakWednesday 08 July 2026215 peakThursday 09 July 2026193 peakFriday 10 July 2026157 peakSaturday 11 July 2026186 peakSunday 12 July 2026167 peakMonday 13 July 2026127 peakTuesday 14 July 2026141 peakWednesday 15 July 2026110 peakThursday 16 July 202699 peakFriday 17 July 2026120 peakSaturday 18 July 2026130 peakSunday 19 July 2026129 peakMonday 20 July 2026134 peakTuesday 21 July 2026125 peakWednesday 22 July 2026115 peakThursday 23 July 2026104 peakFriday 24 July 2026105 peakSaturday 25 July 2026123 peakSunday 26 July 2026125 peakMonday 27 July 2026109 peakTuesday 28 July 202686 peakWednesday 29 July 202685 peakThursday 30 July 202696 peakFriday 31 July 202697 peak

August 2026

31 days as the curve, each the highest figure that day. Behind it, 435 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

Saturday 01 August 2026110 peakSunday 02 August 2026108 peakMonday 03 August 202682 peakTuesday 04 August 202686 peakWednesday 05 August 202693 peakThursday 06 August 202685 peakFriday 07 August 202676 peakSaturday 08 August 202682 peakSunday 09 August 202692 peakMonday 10 August 202691 peakTuesday 11 August 202696 peakWednesday 12 August 2026107 peakThursday 13 August 2026110 peakFriday 14 August 202689 peakSaturday 15 August 202696 peakSunday 16 August 202693 peakMonday 17 August 202680 peakTuesday 18 August 2026103 peakWednesday 19 August 202682 peakThursday 20 August 202697 peakFriday 21 August 202678 peakSaturday 22 August 2026105 peakSunday 23 August 2026114 peakMonday 24 August 2026106 peakTuesday 25 August 202693 peakWednesday 26 August 202684 peakThursday 27 August 202666 peakFriday 28 August 202670 peakSaturday 29 August 202672 peakSunday 30 August 202686 peakMonday 31 August 202663 peak

September 2026

12 days as the curve, each the highest figure that day. Behind it, 282 hourly samples. Each dip is a night. Weekends are shaded.

Tuesday 01 September 202659 peakWednesday 02 September 202652 peakThursday 03 September 202646 peakFriday 04 September 202645 peakSaturday 05 September 202670 peakSunday 06 September 202659 peakMonday 07 September 202653 peakTuesday 08 September 202647 peakWednesday 09 September 202643 peakThursday 10 September 202640 peakFriday 11 September 202641 peakSaturday 12 September 202666 peak

October 2026

Demon Castle Story was released on 8 Feb, 2026.

Not out yet.There is nothing to draw for this month.

Game information

Updated 12 Sep 2026, 20:48 UTC

App ID: 4212210
Last updated: 09 Mar 2026 build 22258214
Developer: Kairosoft Co.,Ltd
Publisher: Kairosoft Co.,Ltd
Release date: 8 Feb, 2026
Platforms: Windows
Download size: 52 MB
Install size: 112 MB
Genres: Casual, Indie, RPG, Simulation, Strategy
Game modes: Single-player
Controller support: Full
Achievements: 18

Launch options (1) Cloud saves (1)

Features & support

Steam features

Steam AchievementsSteam CloudFamily Sharing

Controllers & input

Full controller supportDualShock Controller SupportDualSense Controller SupportSteam Input API Support

Accessibility

Popular tags

RPGCasualSimulationStrategyTower DefenseColony SimCity Builder2D Platformer2.5D2DCutePixel GraphicsColorfulTop-DownDark FantasyIndieFantasyRetroBuildingDemons

About this gameFull description from Steam

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! -- Try searching for "Kairosoft" to see all of our games!! Developer Homepages. Feel free to follow me♪

Content & age ratings2 regional ratings

Regional ratings

DEJUS6Violência fantasiosa

IGRS13Kekerasan

System requirementsMinimum and recommended hardware

Minimum

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 64bit Processor: Intel Atom® x7-Z8750 Memory: 1 GB RAM DirectX: Version 10 Storage: 250 MB available space

macOS

Minimum: Recommended:

Linux

Minimum: Recommended:

Supported languages5 languages

Language	Full audio
English
Simplified Chinese
Traditional Chinese
Japanese
Korean

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

DemonCastle_english

Watch on Steam

AchievementsTotal count and selected achievements

18 achievements in total.

Show selected achievements (may contain spoilers)

Become a Star!Achievement

The Demon Castle Story ContinuesAchievement

Ultra-Strong Demon CastleAchievement

Energetic Demon CastleAchievement

Growing Demon CastleAchievement

Isn’t it too big!?Achievement

Unknown EncounterAchievement

First CompanionAchievement

Hero VS OverloadAchievement

Come back after training!Achievement

View all Steam achievements

1 developer announcement in this snapshot · times in UTC

20261

February

19 Feb05:59
Update: Event Skip Feature & UI Improvements
1. You can now skip certain event scenes. 2. Changed the dungeon level-up pop-up window to a notification message. 3. Changed the Demon King's magic power increase notification pop-up to a notification message. 4. Adjusted the layout of the…
Patch notes