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Security 51

Security 51
Platform
PC
Release Date
File Size
2 GB
Views
1,112
Comments
0
Languages
English, Simplified Chinese, Russian, French, German, Spanish - Spain, Traditional Chinese, Polish, Portuguese - Brazil, Japanese
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Download Game v1.0.2.197g

Version Status

Current Version
v1.0.2.197g

Screenshots

Security 51 — Screenshots 1
Security 51 — Screenshots 2
Security 51 — Screenshots 3

Description

Security 51 is an atmospheric horror simulator where you play as a security guard manning the checkpoint of the infamous underground bunker Area 51. Developed by Alawar, the game draws inspiration from Papers, Please and the SCP Foundation universe, creating a tense document-checking experience with a paranormal twist. Your task is to verify credentials, check access levels, and monitor everyone passing through the elevator shaft, which descends kilometers into restricted laboratories and anomaly containment zones.

The core gameplay revolves around checking documents, security passes, and verbal orders, while identifying discrepancies such as mismatched names, suspicious behavior, slurred speech, or seemingly flawless documents. As you progress through your shifts, you'll unlock advanced screening tools, including fingerprint scanners and blood testing equipment, to determine whether a person is a legitimate employee, an enemy spy, or something entirely inhuman. The game features a consequence system, where your decisions whether detaining the wrong person or letting a threat pass impact future shifts both immediately and with a delay.

Paranormal incidents heighten the tension by exceeding standard security protocols, such as when cameras show an elevator empty despite passengers inside, or when employees return from the lower levels after leaving hours earlier. You'll have to balance strict adherence to protocol with your intuition regarding supernatural threats, deciding not only who enters the facility but also what entities you might release into the outside world. The game's atmosphere gradually builds through routine procedures, gradually revealing that something very sinister is afoot within Area 51.

NOTE. Uploaded version: 22 August 2026 [v1.0.2.197g]. This is Full Release and latest version of game. The game is already Pre-Installed and ready to run the game, read the instruction below.

System Requirements

Minimum

OS:
Windows 10 64 bit
Processor:
Intel Core i5-6400 or analog
RAM:
8 GB RAM
Graphics:
AMD Radeon RX 550 or NVIDIA GeForce GTX 960
Storage:
2 GB available space

Installation Guide

Step-by-step setup process for P2P Release

  1. No installation is needed — this release is fully pre-installed and ready to play, so you can skip setup wizards and long updates entirely.

  2. Extract the archive (RAR/ZIP) to a short, Latin-only path like C:\Games\GameName using WinRAR or 7-Zip — and never launch the game from inside the archive, as that is the top cause of launch failures.

  3. Launch the game via Run Me!.bat (or the main .exe file) in the game folder. If nothing happens, right-click it and choose Run as administrator.

Game Info

Developer
Alawar
Publisher
Alawar
Platform
PC
Release Date
File Size
2 GB
Status
Pre-installed (Portable)

Download Game

Full game

Download
Security_51_v1.0.2.197g
MD5: 030e752dbdc545cebb26add0673dc123
SHA-256: 48f5eaf7b458cdc0a39b2bdb02af12d4619f085657b48ab6be2ee9e741f130fd

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Reviews

4.7
out of 5
11 ratings 11 of these carried over from our archive

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