Buy The Citadel Project Steam Key

PC
The Citadel Project cover
Earn up to 1,600 tickets when you buy Use them in giveaways and auctions+ level bonus

A The Citadel Project Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €8.72 (no fees) at Steam · 1 verified stores, 1 offers in stock · Updated 42min ago.

Top Deals

Verified stores

Final prices with fees

Historical prices
No data available
Payment method

Prices change depending on the selected payment method.

Fees incl. Showing final prices with feesShowing prices without fees
Prices recalculated
No payment fees With payment fees

Final prices with fees

Instant Gaming 4.7 (843.1k)
Steam Card Europe Europe · Steam Wallet credit to buy it on Steam Steam 10 €
€9.79
Steam Card Europe Europe · Steam Wallet credit to buy it on Steam Steam 9 €
€9.79
No code available
€8.72
Store Steam
Global Icon
Region Global
Steam Key
Product type Steam Key
Standard
Edition Standard
Description Icon
Fees -

How much does The Citadel Project for PC cost right now?

The Citadel Project for PC starts at €8.72 (no fees) at Steam, a Steam key.

There is a single verified offer for it right now, so this price is the market rather than the best of several.

Can you activate The Citadel Project in US?

All 1 offers are Global, so the code redeems on any account no matter where it was created.

So, which The Citadel Project deal should you buy?

€8.72 (no fees) at Steam is the one to take.

The Citadel Project is a first-person stealth game set in a dark fantasy world where you play as an escaped prisoner navigating a sprawling medieval fortress. Inspired by classic immersive sims like Thief and Dark Messiah, the game emphasizes staying hidden and using your environment to survive encounters with shambling undead guards and other threats. You begin with minimal resources and must rely entirely on stealth, cunning, and the tools at your disposal—primarily a crossbow and sickle—to progress through the Citadel's depths.

The core gameplay loop centers on observation and planning. A complex lighting system dynamically calculates your visibility based on every light source in the environment, rewarding players who exploit shadows and darkness. You can create your own cover using tools, climb vertical architecture to avoid enemies, and use assassination techniques to eliminate threats silently. Combat exists but is deliberately disadvantageous; the game is designed around avoidance rather than confrontation, with a parry system available only as a last resort.

The game features lite RPG and survival-horror elements that enhance the stealth-focused experience. You'll uncover the dark secrets behind the Citadel's downfall while managing resources and navigating environmental hazards. The solo developer has crafted a cohesive world with atmospheric design and moody environments that emphasize scale and verticality, giving you multiple approaches to each challenge.

The Citadel Project is ideal for players who appreciate methodical, thinking-player stealth games and immersive sim design. If you enjoyed Thief, Dishonored, or Dark Messiah, this indie title offers a focused, challenging experience that prioritizes player agency and environmental storytelling over action-heavy sequences. The game launches in Early Access with core features playable and plans for significant expansion including additional areas, improved AI, and expanded progression systems.

Most common FAQs when buying The Citadel Project for PC in digital format:

It is a key that will allow you to download the game The Citadel Project on your PC from official download platforms.
As of 12/11/2026, in United States, the best price we have found in our selection of online stores that include the key for The Citadel Project on PC is €8.72 (no fees).
The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download The Citadel Project to your game library. The account format requires more complicated steps and is more prone to errors during activation.
The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought The Citadel Project, and they will provide a new key. You can also contact us, and we’ll help you out.
Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

What do our users think of The Citadel Project for PC Digital?

0/5 (0 Comments)

No comments.

To comment, at Gocdkeys.

Before commenting, verify your account from the link sent to your email.

Rate and comment: your experience matters!

You are registered as:
Rate your stars
Thank you for your comment, it will be reviewed by our team shortly.
Share your thoughts about this game

Minimum 50 characters. Tell us something useful about the game: filler comments aren’t approved and don’t earn tickets.

50 more characters to go 0/50

To win the tickets, your email in Gocdkeys must match your email in Discord.

For the Telegram tickets, open our bot @Gocdkeys_offers_bot, tap "Start" and send it the email of your Gocdkeys account in a private message (if you signed up with Steam, add a real email to your profile first).

Your review must be original. We check it by hand within 24 hours, and the tickets are only added if we approve it. Only one review per game counts, up to 2 a day.

Win free games with your tickets →