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Security 51 cover art

Security 51 Game Details

Release Name:ย Security 51

Game Version:ย Build 24838821

Release Date: 12 Aug, 2026

Publisher: Alawar

Developer: Alawar

Based On:ย CSF & Goldberg

Security 51 Direct Download - Game Overview

Security 51 is an atmospheric horror 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 alienโ€”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.

Everyone who passes through your checkpoint carries papers, passes, or verbal orders. 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. These could be incorrect answers, behavior that deviates from protocol, slurred speech, or even documents that seem too perfect. 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.

With experience, you'll gain increasingly more accurate methods of identity verification, such as fingerprint verification or 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.

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.


Security 51 Screenshots

Security 51 screenshot 1 Security 51 screenshot 2 Security 51 screenshot 3 Security 51 screenshot 4


Security 51 Trailer


Security 51 System Requirements

Minimum Requirements

Recommended Requirements

OS

Windows 10 64 bit

-

Processor

Intel Core i5-6400 or analog

-

Memory

8 GB RAM

-

Graphics

AMD Radeon RX 550 or NVIDIA GeForce GTX 960

-

DirectX

-

-

Storage

2 GB available space

-


How to Install Security 51

  1. No Installation Needed: The game is pre-installed. Just download and extract.

  2. Extract: Right-click the .zip or .rar file and select "Extract Here" or "Extract to folder".

  3. Run: Find Security51.exe inside the folder and run it.

Game Data & Settings

  • Change Language: Edit the file located at steam_settings/Configs.user.ini

  • Save Data Location: %USERPROFILE%/AppData/LocalLow/\Alawar\Security51\Release\Build

Important Notes

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  • DicDale changed the title to Security 51 Free Download (Build 24838821)
  • Replies 1
  • Views 814
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Thanks for updating the game to the latest steam build just moment after the major update release on Steam DicDale!

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