The Citadel Project CD Key
PC price comparison · Reliquary Software · 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.
Lowest final price
at Steam · Standard Official
Historical low: $8.99 on November 13, 2026
Get the best deal ↗Compare The Citadel Project key prices
Sorted by final price including fees, never by commission.
| Store | Edition | Activates on | Region | Price | Fees | Final price | |
|---|---|---|---|---|---|---|---|
SteamOfficial | Standard | Steam | Global | −10%$8.99 | none | $8.99 | Go to store ↗ |
- SteamOfficial
Standard · Steam · Global
$8.99 · fees: noneGo to store ↗$8.99
The Citadel Project price history
Historical lows by store
- Steam$8.99
About The Citadel Project
The Citadel Project is a solo-developed stealth game with lite RPG/Adventure elements. Set in a Dark Fantasy environment, you are at a disadvantage in direct combat and have no magic spells to back you up... Use stealth, assassination, and many tools at your disposal to survive and avoid danger. The Citadel Project, the last line of defense built by the Ancient Kings in an attempt to preserve what remains of humanity in the face of the Great Storm. Unfortunately, an evil force is consuming it from within... Will you be able to navigate the nightmarish, labyrinthine architecture of this mega-structure and uncover what happened? You are nobody, just a simple prisoner who manages to escape from a cell deep within the Citadel. With only a few tools at your disposal, you must survive and find your way through its alleys and labyrinths, now turned deadly. Master the shadows You must remain silent and, above all, unseen by the many dangers lurking within the Citadel. The Citadel Project features a complex lighting system that dynamically calculates your exposure to every light source, allowing you to take advantage of every area of darkness, or even create your own using the tools at your disposal. Eliminate your enemies These infected guards and civilians are a real threat, and the infection makes it impossible to kill them by normal means, but if you are stealthy enough, you can tear out the gangrenous growths on their backs. Be careful, don't leave bodies in plain sight, or the entire area will be alerted... Use your brain, push away Even if you can't fight and defeat infected enemies, you can still use your force to push away your foes, on the ground, off a cliff, on thorned barricad, … or even fall on them from above. Use the verticality of the Citadel architecture so that your enemies will no longer be a threat. One crossbow, multiple bolts Your main tool for surviving and progressing through the Citadel is your crossbow. Various types of bolts can be found throughout your journey, each offering new possibilities. Stay hidden and extinguish torches, reach new heights with rope bolts, or eliminate threats with fire bolts, the choice is yours. Explore your environment Take the time to explore your surroundings and discover useful resources such as ammunition, secret relics, precious artifacts and notes detailing the Citadel's history. More importantly, careful exploration may reveal new paths forward through the vast depths of the…Read more
The Citadel Project system requirements
Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 or +
- Processor: Intel Core i5-10400 | AMD Ryzen 5 3600
- Memory: 16 GB RAM
- Graphics: NVIDIA GTX 980 | AMD Radeon RX 580
- Storage: 10 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows 11
- Processor: Intel Core i5-12600K | AMD Ryzen 5 7600X
- Memory: 32 GB RAM
- Graphics: NVIDIA RTX 3060 | AMD RADEON 9060 XT
- Storage: 10 GB available space
The Citadel Project key FAQ
+What is a The Citadel Project CD key?
A The Citadel Project CD key is a digital code that unlocks the game on a PC platform such as Steam. After redeeming it, you download the game directly from that platform and it stays in your library.
+What is the cheapest price for The Citadel Project?
The cheapest The Citadel Project key right now costs $8.99 at Steam, 10% off the regular price. We compare 1 offers from 1 store, and the price already includes payment and service fees.
+What is the historical low for The Citadel Project?
The lowest price we have recorded for The Citadel Project is $8.99 on November 13, 2026. Check the price history chart to decide whether to buy now or wait for the next sale.
+Is it safe to buy a The Citadel Project key?
Buying from an official store such as Steam, GOG or Epic Games is always safe. Key resellers are often cheaper but sell keys second-hand, so check the region lock and buyer protection before you buy. Every offer on GameKeyDeal is labelled as official or reseller.
