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Crypto2Key
Preview
Activation
Steam
Region
Worldwide
French
interface, subtitles
Release
12 Aug 2026

Security 51

Standard Edition
Steam Worldwide Digital key
List price €10.00 Market price €6.99
€5.89 −16 %
≈ $6.51 0.000094 BTC 6.51 USDT
PC key
To activate on Steam · Worldwide

About the game

A "SIMPLE" JOB

Security 51 is an atmospheric security guard simulator inspired by Papers, Please, and SCP paranoia. You're on duty in the underground bunker of Area 51, where the most dangerous part begins at the elevator: the shaft descends for miles down to unknown levels. Whether it's laboratories, anomalies, inhumane experiments, or something alien—you're not supposed to know. Your task is simple: let in those who have access and stop those who don't... even if everything looks "right" on the surface.

SECURE, CONTAIN, PROTECT

Everyone who passes through your checkpoint carries papers and passes. Your job is to check names, positions, clearance levels, and time, ensuring the number of people entering and leaving matches, and pay attention to any oddities. As time passes you'll catch yourself thinking that something's wrong more and more, and the only thing to rely on will be the protocols. But even they can be wrong.

TOTAL CONTROL

With experience, you'll gain increasingly more accurate methods of identity verification, such as blood testing. Did that janitor simply open the wrong door, or are they a spy for an enemy government? Or are they not even human? When in doubt, quarantine the suspect. Sometimes you'll make mistakes and lock up an ordinary employee, and sometimes you'll find a titanium cell ripped open from the inside. Some decisions will have immediate consequences, others only after several shifts.

CONTAIN THE THREAT

The consequences of every mistake go far beyond issues in the workplace. Let the wrong person out, and the infection will ravage the city. Isolate suspicious employees, investigate anomalies, and launch new operations to contain the threat before it's too late.

Remember, it's not just about who you let in, but who or what you let out into the world.

Single-playerSteam AchievementsSteam Trading CardsSteam CloudFamily SharingXBOX Controller SupportDualSense Controller Support

Product details

Developer
Alawar
Publisher
Alawar
Release date
12 August 2026
Genre
Adventure, Indies, Simulation
Languages
10 languages
Platform
Steam
Activation
Steam
Region
Worldwide
Languages in detail
InterfaceAudioSubtitles
English·
French·
German·
Japanese·
Polish·
Portuguese (Brazil)·
Russian·
Chinese (Simplified)·
Spanish·
Chinese (Traditional)·

System requirements

Minimum
OSWindows 10 64 bit
ProcessorIntel Core i5-6400 or analog
Memory8 GB RAM
GraphicsAMD Radeon RX 550 or NVIDIA GeForce GTX 960
Storage2 GB available space
Additional NotesStay Hydrated
Minimum
OSOSX Big Sur 11.7.10 or newer
ProcessorApple M1
Memory8 GB RAM
Storage2 GB available space
Activation

Activate on Steam

  1. 1Install Steam and log in
  2. 2Games menu › Activate a product on Steam
  3. 3Paste the key from your email or order page
  4. 4The game appears in your library: download it
Usable in every country. Do not use a VPN when activating.
Detailed guide

Steam reviews

Mostly positive
453 reviews on Steam
Source: Steam. Summary of all player reviews on the Steam store.

Crypto2Key customer reviews

No review yet. Only customers who bought this product can leave a review, once their key has been delivered.

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