The Citadel Project
Reliquary Software · released Nov 11, 2026
The Citadel Project is a first-person stealth game with lite RPG/Adventure elements, inspired by Thief and Dark Messiah and set in a dark fantasy world. Use your tools and surroundings wisely, stay hidden in the shadows, and uncover the dark secrets behind the Citadel's downfall.
Price
-10%$8.99
$9.99
Reviews
72%
22 · Mostly Positive
Playing now
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not sampled yet
24h peak
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all-time seen —
Followers
—
Steam community hub
Owners (est.)
~660
330 – 1.1K
YouTube activity
15
videos · 30 d27
creators9.8K
views · 1 yTwitch activity
2
avg viewers · 30 d173
hours watched · 30 d4
streamers · 30 dProduct info
from Steam's PICS · read 6h ago- Change number
- 40,934,859 · seen 6h ago
- Public build
- 26,627,009 · Nov 12, 2026 (1d ago)
- Operating systems
- windows
- Architecture
- 64-bit
- Install size
- 4.8 GB · 4.4 GB download
- Install folder
The Citadel Project- Controller support
- —
- Metacritic
- —
- Release state
- released
- Community
- hub
Steam Deck
UnknownNo Deck test results published.
Branches · 1
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 26,627,009 | Nov 12, 2026 · 1d ago |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 26,627,009 | public | Nov 12, 2026 20:13 | 1d ago |
| 26,602,034 | public | Nov 11, 2026 21:33 | 2d ago |
| 26,598,935 | public | Nov 11, 2026 18:42 | 2d ago |
Depots · 2
content of the public branchLaunch options · 1
| Executable | OS | Description |
|---|---|---|
TheCitadelProject.exe |
all |
Languages · 5
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| German | ✓ | — | ✓ |
| Polish | ✓ | — | ✓ |
| English | ✓ | ✓ | ✓ |
| Russian | ✓ | — | ✓ |
| Simplified Chinese | ✓ | — | ✓ |
Packages · 1
all packages| Sub | Name | Billing | Price |
|---|---|---|---|
| 1666887 | — | Store or CD key | — |
Bundles · 0
all bundlesNot part of any bundle we know.
Change numbers
all changes#40,934,859 · 6h ago#40,925,155 · 13h ago#40,918,585 · 15h ago#40,914,544 · 17h ago#40,908,924 · 20h ago#40,898,820 · 1d ago#40,896,431 · 1d ago#40,890,063 · 1d ago#40,888,253 · 1d ago#40,887,981 · 1d ago#40,880,180 · 1d ago#40,873,668 · 1d ago#40,871,777 · 1d ago#40,868,004 · 1d ago#40,853,314 · 2d ago#40,849,766 · 2d ago#40,845,051 · 2d ago#40,843,195 · 2d ago#40,832,693 · 2d ago#40,831,544 · 2d ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
| When | Note | Build | Update size |
|---|---|---|---|
| Nov 12, 2026 | Patch note - Early Access v0.1.2.12.11 Patch note - Early Access v0.1.2.12.11 Fixed an issue where the player could be softlock in the first segment of the Deepest Prison. If you had opened the double door, saved the game, and then reloaded, the double door would be closed again, but the key would no longer be obtainable.Mouse smoothing is disable by default. An option has been added to Keyboard/Mouse settings to enable/disable Mouse S |
26,627,009 | -25.2 KB |
| Nov 11, 2026 | Build 0.1.2.11.11 - Hotfix 1 Hello Citadel Explorers! I hope you are all having fun right now on the early access. A quick hotfix to solve a major issue with the mantle system. In certain specific situations, when you attempted to climb a ledge, the game would fail to correctly register the proper coordinates and would instead try to send you back to the previous ledge you had grabbed onto. I found why and where the issue occ |
26,627,009 | -25.2 KB |
| Oct 13, 2026 | Patch note - Demo build V0.9.5 Dear Citadel Explorers, today is a new day for The Citadel Project. Kind of a "big update" for the demo. Improved movements, reworked climb system, reworked rope behavior, parry feature, lot of bug fixing, total in game time displayed at the end of the level, reworked fall damage formula, ... I hope you'll enjoy ! Indeed, there is still issues that I'm currently fixing, and new one that will be di |
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| Oct 10, 2026 | Patch note - Demo build V0.9.4 Hello my Citadel Explorers ! In today's patch note, lot of gameplay improvement and addition to the base formula. You can now fight (in a way) with a guard. I'm still working on AI debugging and polish, there is still many little issues with AI states and Alert level states, especially on reset state and decrease alert level loop behavior. It will be fixed soon, with a bunch of other fixes and QoL |
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| Oct 6, 2026 | Hotfix - Patch 0.9.3.2.2 Fixed the resolution setting issueFixed an issue with radial menu locking youFixed an issue where the confirmation popup from the merchant was not correctly closed after pressing ESCFixed an issue where merchant inventory slot can not receive correct input action |
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| Oct 6, 2026 | Patch note - Demo build V0.9.3.2.2 Hello fellow Citadel explorers, In this patch, I've improved the push system, with some revert from previous patch. There is also a new tool to unlock: the Monocular, and some bug fix, indeed. Still investigating why Fullscreen/Borderless/Windowed screen settings doesn't work. It work perfectly in game engine/standalone game, but while packaged it stop working. I hope to deploy a patch for this to |
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| Oct 5, 2026 | Patch note - Demo build V0.9.3.2 Hello there, new patch has been deployed. Fixing a lot of QoL and gameplay issues. Reminder: feel free to join the Discord to make feedback, suggestion or report bug. Or just simply engage with me and the community slowly growing, share your clip, ... https://discord.gg/TwHNHj4sRR Major changes : You can't push enemy from their front anymore. It will now only stagger them for a second. Gameplay: F |
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| Oct 2, 2026 | Patch note - Demo build V0.9.3.1 The first patch note of The Citadel Project (little achievement and milestone reach!). First, I want to thanks everyone who already had played and tested the demo, and everyone taking time to write feedback, suggestion, and report bugs. Special thanks to Hightide on Discord and Zoltan Snipes, lot of help in all of this. You already deserved a crown. Keybind: Add dynamic icon input to tutorial UI, |
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