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Security 51 cover art

Game · Alawar

Security 51

SteamEurope and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.
  • Steam Deck Verified

You're a security officer deep within Area 51. Scan the staff, verify clearances, and decide who can enter the elevator and who absolutely mustn't leave.

Before you buy

Redeem on
Steam clientPC: Windows, macOS. Needs a free Steam account.
Activates in
Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
You get
A digital activation keyStandard edition. No disc, no box.
Delivery
To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.

Trailers and screenshots

01 / 09 Trailer

Security 51

Trailer 1 of 1

About this 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.

Description, images and details are taken from this product's Steam page.

Details

Developer
Alawar
Publisher
Alawar
Released
12 Aug, 2026
Genres
Adventure, Simulation, Horror, Puzzle, Indie
Runs on
Windows, macOS
Activates on
Steam client, Europe and UK
Interface
English, Simplified Chinese, Russian, French, German, Spanish - Spain, Traditional Chinese, Polish, Portuguese - Brazil, Japanese
Controller
Full controller support
  • Single-player
  • Steam Achievements
  • Full controller support
  • Steam Trading Cards
  • DualSense Controller Support
  • Steam Cloud
  • Family Sharing

The player takes the role of a security officer working in a high-security research facility. As part of the inspection process, employees and scientists must be examined for anomalies and physical inconsistencies. Some inspections involve using a body scanner that can reveal partial nudity beneath clothing. These scenes are presented solely as part of the gameplay mechanics and are not intended to be sexual or erotic in nature.

System requirements

Windows

Security 51 system requirements on Windows
ComponentMinimum
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
macOS
Security 51 system requirements on macOS
ComponentMinimum
OSOSX Big Sur 11.7.10 or newer
ProcessorApple M1
Memory8 GB RAM
Storage2 GB available space

Activating it on Steam client

  1. Open the Steam client and sign in.
  2. Choose Games in the top menu, then Activate a Product on Steam.
  3. Paste the key and confirm. It appears in your library.

The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.

Security 51€10.69