

Security 51
Alawar · August 12, 2026 · Simulation, Point & Click, Puzzle, Choices Matter, Investigation
Buy the Security 51 key for Steam from Eneba at $3.30 — the cheapest of 21 stores we compare.
Where to buy Security 51 — official stores
Cheapest Security 51 keys — keyshops
Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.
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Security 51 price by region
Security 51 costs £2.68 in the United Kingdom, €2.99 in Europe (EUR), $3.30 in the United States, $3.30 in Georgia (USD), CA$6.65 in Canada, A$7.74 in Australia, NZ$11.60 in New Zealand, zł15.15 in Poland and R$21.57 in Brazil right now.
| Region | Best price | Official store | Key shop | Stores |
|---|---|---|---|---|
| £2.68 −45% | £4.85 | £2.68 | 19 | |
| €2.99 −46% | €5.54 | €2.99 | 20 | |
| $3.30 −45% | $5.54 | $3.30 | 21 | |
| $3.30 −48% | $6.29 | $3.30 | 19 | |
| CA$6.65 −45% | CA$6.65 | CA$10.79 | 18 | |
| A$7.74 −45% | A$7.74 | A$12.56 | 19 | |
| NZ$11.60 −35% | NZ$11.60 | NZ$14.18 | 16 | |
| zł15.15 −41% | zł25.52 | zł15.15 | 18 | |
| R$21.57 −40% | R$35.80 | R$21.57 | 18 |
Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.
Screenshots
About Security 51
Security 51 is an atmospheric security guard simulator where you man a checkpoint in Area 51's underground bunker, deciding who to clear through based on documents, clearance levels, and your growing suspicion that something is deeply wrong. You'll gradually unlock advanced verification methods like fingerprinting and blood testing to catch spies, anomalies, and things that might not be human at all, while discovering that following protocol might be the only thing keeping you sane—or making you complicit in something far worse.
A "SIMPLE" JOB
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 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, 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.TOTAL CONTROL
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.ABNORMAL SITUATIONS
What should you do if the elevator coming up from the lower levels registers as empty on all the cameras, but when the doors open, a person is standing inside? Is this a camera system malfunction or something else? Or what if the employee who went home already rises from the depths with the same papers? The decision is yours.Remember, it's not just about who you let in, but who or what you let out into the world.Security 51 — game info
- Platforms
- Windows, macOS
- Steam Deck
- Verified
- Player modes
- Single-player
- Controller
- Full controller support
- PC Game Pass
- Not included
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Security 51 is a Papers, Please-inspired game that switches perspective to have players guard against monsters, featuring charming pixel graphics and a humorous tone that most players appreciate. Common praise centers on the creative premise, varied difficulty modes, and replay value through branching endings, though complaints focus on slow narrative pacing early on, unclear mechanic explanations, and tedious tasks that don't feel rewarding relative to progress loss on failure. Players seem to regard it as a worthwhile casual experience, particularly for those who enjoyed Papers, Please.
It is a nice little game heavily inspired by "Papers, Please", yet offers something new with its "scary monsters" POV. Security 51 is not without faults and I can see where the negative comments are coming from, but if you want to play something casual and wind down this is not a bad shout. The pixel graphic is great, some events and fails are funny, but don't except any deep realism or memorable characters.5 found this helpful
[b]Kram[/b] (streamer): Pass [b]Doppl[/b] (streamer): Pass [b]Chat[/b] (community): Pass Take 1 moment, just 1 moment, and ask you self - "what if the Men In Black had TSA" that's the premise here. Please take off your shoes and put the liquids in the bin as we make sure you're from this planet and don't have an eldritch horror crawling out of you. And that... actually sounds interesting. But early on in this title there are absolutely no stakes and no connection to the characters or the narrative. It goes on for too long before those elements come into play and by then our audience wanted to move on, and so did we. The development of this title is clearly inspired, we played papers please and other paper's please successors, so we get it, but we need to get to the "Why" much faster. Also, minor spoiler, there's a ghost dog. and HE'S A GOOD BOY. [list] [*]“Imagine being MIB TSA” [*]“I need more narrative/character/stakes woven into the game play” [*]“fun minigames, lots of systems, but missing motivations” [*]“clearly inspired.. but ‘why’?” [*]“whos a good phantom boyyy. you are!” [/list] Review recommendations are an aggregate of the streamers and the community. We do live c…2 found this helpful
This game is like Papers Please if Papers Please was less focused on keeping your family alive and more focused on you keeping yourself sane enough to fix the world. After doing a full run you can then go back to important branching points with all the tools unlocked to go for all the different endings adding a level of replaybility without having to do a full reset for the completionists.2 found this helpful
This game is awesome! If you liked Papers Please, you will love this game. There are 3 different play modes (chill (no timer), medium and hard), plus an endless mode. Game play and story line was so hilarious and silly, it got me laughing quite a bit. I loved the music (had Techno vibes) and the pixel graphics. I really enjoyed my time with this game and I could see myself playing this more in the future. More games like this, please! Great job, Devs ;}
As someone developing a game - coming across this and the creativity used is quite inspiring - great music and mechanics
Started very strong and progressively got weaker and then stronger, a very strange ebb and flow with this one, the loop is fun, the animations and visuals are charming, some of the tasks feel unnecessarily tedious for the pay-out but overall it's a good game, I feel a few of the mechanics are not explained well enough but even still, there was more good than bad with this one and I would like to return to this in the future, it unfortunately is a good game but is not one that I can sink 6 hours into, get a fail event and then start from the beginning like nothings happened.
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