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Security 51

Security 51

Alawar · Alawar · Aug 12, 2026
Adventure Indie Simulation
Delayed observation Observed
17
Last tracked
102
All-time peak
n/a
Δ 24h
Player count last observed
Live player data is temporarily unavailable; historical values remain visible for context.

Security 51 - Steam Charts & Historical Stats

You're a security officer deep within Area 51. Explore historical player activity and pricing for Security 51. Player-count data was last observed Sep 30, 2026.

Price
$9.99
Genre
Adventure
Developer
Alawar

Security 51 player count and price summary

Current players
Unavailable
All-time peak
102
24-hour player change
Unavailable
Current US price
$9.99

Player count last observed . Values marked unavailable are not estimated.

Last Tracked Players

17
change unavailable (24h)

All-Time Peak

102
Sep 2026

Estimated Owners

0 .. 20,000
Estimate via SteamSpy

Game Insights

Buy Verdict

Watch — $9.99.

Decent deal at 0% off, but might drop further. Watch for better opportunities.

▲ ~0 days until next sale

Update Momentum

Moderate Updates — 1 patches in last 30 days.

17 patches and 17 news items in last 180 days. Latest patch effect size: 0.00.

▬ 1 patches this month
Player count

Activity Heatmap

UTC+0 (Your Timezone)
102
Peak Activity
51
Avg Activity
55
Active Hours
36%
Sample coverage
Less Active
More Active
0
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Sun
Sunday 0:00
No samples
Sunday 1:00
48 players · 1 samples
Sunday 2:00
No samples
Sunday 3:00
No samples
Sunday 4:00
44 players · 1 samples
Sunday 5:00
No samples
Sunday 6:00
No samples
Sunday 7:00
41 players · 1 samples
Sunday 8:00
No samples
Sunday 9:00
No samples
Sunday 10:00
64 players · 1 samples
Sunday 11:00
No samples
Sunday 12:00
No samples
Sunday 13:00
84 players · 1 samples
Sunday 14:00
No samples
Sunday 15:00
No samples
Sunday 16:00
96 players · 1 samples
Sunday 17:00
No samples
Sunday 18:00
No samples
Sunday 19:00
84 players · 1 samples
Sunday 20:00
No samples
Sunday 21:00
No samples
Sunday 22:00
No samples
Sunday 23:00
50 players · 1 samples
Mon
Monday 0:00
No samples
Monday 1:00
No samples
Monday 2:00
46 players · 1 samples
Monday 3:00
No samples
Monday 4:00
No samples
Monday 5:00
31 players · 1 samples
Monday 6:00
No samples
Monday 7:00
No samples
Monday 8:00
23 players · 1 samples
Monday 9:00
No samples
Monday 10:00
47 players · 1 samples
Monday 11:00
No samples
Monday 12:00
No samples
Monday 13:00
No samples
Monday 14:00
51 players · 1 samples
Monday 15:00
No samples
Monday 16:00
No samples
Monday 17:00
57 players · 1 samples
Monday 18:00
No samples
Monday 19:00
No samples
Monday 20:00
No samples
Monday 21:00
78 players · 1 samples
Monday 22:00
No samples
Monday 23:00
No samples
Tue
Tuesday 0:00
53 players · 1 samples
Tuesday 1:00
No samples
Tuesday 2:00
No samples
Tuesday 3:00
44 players · 1 samples
Tuesday 4:00
No samples
Tuesday 5:00
No samples
Tuesday 6:00
22 players · 1 samples
Tuesday 7:00
No samples
Tuesday 8:00
34 players · 1 samples
Tuesday 9:00
No samples
Tuesday 10:00
No samples
Tuesday 11:00
52 players · 1 samples
Tuesday 12:00
No samples
Tuesday 13:00
No samples
Tuesday 14:00
No samples
Tuesday 15:00
63 players · 1 samples
Tuesday 16:00
No samples
Tuesday 17:00
No samples
Tuesday 18:00
76 players · 1 samples
Tuesday 19:00
No samples
Tuesday 20:00
No samples
Tuesday 21:00
56 players · 1 samples
Tuesday 22:00
No samples
Tuesday 23:00
No samples
Wed 📍
Wednesday 0:00
No samples
Wednesday 1:00
39 players · 1 samples
Wednesday 2:00
No samples
Wednesday 3:00
No samples
Wednesday 4:00
26 players · 1 samples
Wednesday 5:00
No samples
Wednesday 6:00
No samples
Wednesday 7:00
21 players · 1 samples
Wednesday 8:00
No samples
Wednesday 9:00
No samples
Wednesday 10:00
36 players · 1 samples
Wednesday 11:00
No samples
Wednesday 12:00
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Wednesday 13:00
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Wednesday 14:00
37 players · 1 samples
Wednesday 15:00
No samples
Wednesday 16:00
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Wednesday 17:00
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Wednesday 18:00
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Wednesday 19:00
66 players · 1 samples
Wednesday 20:00
No samples
Wednesday 21:00
No samples
Wednesday 22:00
No samples
Wednesday 23:00
47 players · 1 samples
Thu
Thursday 0:00
No samples
Thursday 1:00
No samples
Thursday 2:00
44 players · 1 samples
Thursday 3:00
No samples
Thursday 4:00
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Thursday 5:00
30 players · 1 samples
Thursday 6:00
No samples
Thursday 7:00
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Thursday 8:00
25 players · 1 samples
Thursday 9:00
No samples
Thursday 10:00
No samples
Thursday 11:00
30 players · 1 samples
Thursday 12:00
No samples
Thursday 13:00
No samples
Thursday 14:00
58 players · 1 samples
Thursday 15:00
53 players · 1 samples
Thursday 16:00
No samples
Thursday 17:00
67 players · 1 samples
Thursday 18:00
64 players · 1 samples
Thursday 19:00
No samples
Thursday 20:00
No samples
Thursday 21:00
89 players · 1 samples
Thursday 22:00
62 players · 1 samples
Thursday 23:00
No samples
Fri
Friday 0:00
47 players · 1 samples
Friday 1:00
36 players · 1 samples
Friday 2:00
No samples
Friday 3:00
45 players · 1 samples
Friday 4:00
22 players · 1 samples
Friday 5:00
No samples
Friday 6:00
30 players · 1 samples
Friday 7:00
37 players · 1 samples
Friday 8:00
No samples
Friday 9:00
40 players · 1 samples
Friday 10:00
37 players · 1 samples
Friday 11:00
No samples
Friday 12:00
61 players · 1 samples
Friday 13:00
47 players · 1 samples
Friday 14:00
No samples
Friday 15:00
No samples
Friday 16:00
65 players · 2 samples
Friday 17:00
No samples
Friday 18:00
No samples
Friday 19:00
No samples
Friday 20:00
70 players · 2 samples
Friday 21:00
No samples
Friday 22:00
No samples
Friday 23:00
54 players · 2 samples
Sat
Saturday 0:00
No samples
Saturday 1:00
No samples
Saturday 2:00
No samples
Saturday 3:00
53 players · 1 samples
Saturday 4:00
No samples
Saturday 5:00
No samples
Saturday 6:00
32 players · 1 samples
Saturday 7:00
No samples
Saturday 8:00
No samples
Saturday 9:00
39 players · 1 samples
Saturday 10:00
No samples
Saturday 11:00
No samples
Saturday 12:00
68 players · 1 samples
Saturday 13:00
No samples
Saturday 14:00
No samples
Saturday 15:00
92 players · 1 samples
Saturday 16:00
No samples
Saturday 17:00
No samples
Saturday 18:00
84 players · 1 samples
Saturday 19:00
No samples
Saturday 20:00
No samples
Saturday 21:00
102 players · 1 samples
Saturday 22:00
No samples
Saturday 23:00
No samples

Latest News

Sep 03, 2026 at 14:42 UTC Read More
Aug 27, 2026 at 15:00 UTC Read More

Steam Deck Verified!

📝 Update
Aug 21, 2026 at 08:57 UTC Read More

Major Update

📝 Update
Aug 20, 2026 at 13:13 UTC Read More

Future Plans

📝 Update
Aug 15, 2026 at 08:41 UTC Read More

Day One Update

📝 Update
Aug 13, 2026 at 12:18 UTC Read More
Aug 12, 2026 at 11:58 UTC Read More

Launch Times & Prices

📝 Update
Aug 07, 2026 at 09:30 UTC Read More
Aug 04, 2026 at 07:08 UTC Read More
Jul 21, 2026 at 06:48 UTC Read More
Showing 1 to 10 of 17 news items

Price History

Lowest Price
$9.99
Sep 2026 across all regions
Current Price
$9.99
US region
Price history across regions (last 30 days)

System Requirements

Platform Support
Windows macOS
Windows Requirements
Minimum:
Minimum:
  • 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
  • Storage: 2 GB available space
  • Additional Notes: Stay Hydrated
macOS Requirements
Minimum:
Minimum:
  • OS: OSX Big Sur 11.7.10 or newer
  • Processor: Apple M1
  • Memory: 8 GB RAM
  • Storage: 2 GB available space
Controller Support
full
Pricing
Paid Game
$9.99 (USD)

Additional Information

Categories
Single-player Steam Achievements Full controller support Steam Trading Cards DualSense Controller Support Steam Cloud Family Sharing
Supported Languages
English, Simplified Chinese, Russian, French, German, Spanish - Spain, Traditional Chinese, Polish, Portuguese - Brazil, Japanese

Player-to-Price Ratio

1.7
7-day avg players per $1 spent

Current Pricing

💰
$9.99
Regular Price

Additional Information

🏆 Achievements
68
total achievements
Featured:
You're a Guard, Harry!
Click-Clack!
👍 Recommendations
467
positive reviews
🇧🇷 DEJUS Rating
14
Brazilian rating
🇩🇪 Steam Germany
12
German classification
📦 DLC Available
1
downloadable content
🆘 Support
⚠️ Content Warning
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.
🎁 Purchase Options
1
package options

Developer Analytics

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About This Game

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. The deeper you go, the less certain you are that anyone standing before you is still human.

Detailed Description

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.

Frequently Asked Questions

Is Security 51 worth buying right now?
Watch — $9.99. Decent deal at 0% off, but might drop further. Watch for better opportunities.
When does Security 51 go on sale?
Decent deal at 0% off, but might drop further. Watch for better opportunities.
Is Security 51 still getting updates?
Moderate Updates — 1 patches in last 30 days. 17 patches and 17 news items in last 180 days. Latest patch effect size: 0.00.
Is Security 51 free to play?
Security 51 costs $9.99 on Steam.
What genre is Security 51?
Security 51 is a Adventure, Indie, Simulation game.
Who developed Security 51?
Security 51 was developed by Alawar and published by Alawar.
What platforms does Security 51 support?
Available on Steam for Windows, macOS.