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.
Modeled estimate, not a reported figure. How we estimate →
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.
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.
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.
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.
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Sums Steam only; GOG, Epic publish no volume signal, so the true total is higher by an unknown amount.
Engagement
Reviews
Themes across 363 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
I'm having so much flippin' fun playing and checking everything is in order. The variety of things to check is great - a new blood check just popped up and threw me off my rhythm but I worked it out. Do highly recomend !
Leider zu eintönig. Hatte gehofft ein ähnliches Spiel wie Papers Please zu erhalten, aber leider nicht der Fall. Es fehlt auch eine richtige Story. Zu mindestens die Zeit die ich gespielt hatte, hat eine Story nicht wirklich stattgefunden... Daher kann ich das Spiel leider nicht empfehlen.
Media
Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
Languages: English, Simplified Chinese, Russian, French, German, Spanish - Spain, Traditional Chinese, Polish, Portuguese - Brazil, Japanese
| $9.99 |
| — |
| — |
| #49 |
| not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Hours played at review time, across 363 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
entretenido y adictivo
Its a good game but the character noise is annoying especially the guard also they need to work on their explanation the photo level you need to move the camera around not only taking a face photo
I think about this game as an investment, because as I can see, the author is very active, trying to rescue this game. The fact is - the trailer bought me, but I couldn't get through the whole beginning, nothing interesting were happening yet. It was hard to read anything, because the font is tough! But my eyes aren't the best, so... Voices were so irritating, I never made it on time or fully understood all the basic mechanics. If I want to try out things, I lose the day, which comes with consequences. Sometimes you need 3 x 35$ burgers to be full, when every penny counts, because of heavy punishments for errors. ...for now! It needs time to see something unique there, but the game doesn't fully encourage us to do so. As author is actively responding to any in-game reports and the patchs+game expansions are coming with updates. After 6-8 months, it can be a totally different game. I'm leaving it for now, coming back later and I'm sure there is going to be as hard fun, as hard my dopamine hit was watching the trailer. Generally positive, good investment!
I can't recommend it. As much as I like the theme and the humor in the game, it loses its way and becomes tedious. You end up doing the same thing over and over again. That part is fine—I'm used to that. But the problem is that there are four activities, and the one you spend all your time on—analyzing people—turns out to be the least important. The other activities are barely explained, yet they constantly cause you to get a "game over." The game is poorly designed in this regard. You have to activate activities around the city, but it’s impossible to make heads or tails of it; meanwhile, something bad grows exponentially and kills you. You have to capture people in the elevator. Nothing is explained—not the reason why, nor the purpose. You capture them? They go to quarantine. You run experiments on them. Which ones? Why? For what purpose? None of that is explained. The result? Game over. You either start from scratch or go back to a specific day—but you don't know which day to choose. You go back, and you get the same result all over again. You might be perfect at analyzing every single person, but you have no idea what to do with the rest. Seriously, I’m fed up. Whoever designed this part of the game clearly doesn't want you to have fun—honestly.
玩到现在打通了第一个结局。就是最后选择花费百分百san值的命运机器结局（游戏时常显示我玩了十多个小时但是我今天下午挂机了一下午所以实际上没有玩13个小时那么久）然后解锁了九个开启平行世界的能力。现在比较好奇一共有几个最终结局，如果是九个的话就需要从头开分支了lmao。整体我觉得是非常好玩的，玩起来比较上头。然后二十多天的好像是有一个bug就是有破碎红细胞的人一定要杀，但是杀了显示我出错是因为名字错了。逻辑上来说名字是最后考虑的，不用杀也不用直接放过才考虑第一条。但是该杀的人显示出错。还有就是扎针失误没有什么惩罚。整体难度还好吧，毕竟可以回档，而且在通关之前也可以选择时间线重开。反正我没遇到评论区说的那些死存档的情况。也没遇到一下涨68的情况。还有就是想给作者提个醒有些物品是完全不合理的，比如炒面，卖75应该，但是数值完全比不上两个35的汉堡。你说药片比不上咖啡是合理的，因为药片是第一层，咖啡后面才解锁。但是炒面是二层解锁的性价比完全不如一层的汉堡
juegazo
это не пепер плиз 2. это какая-то флеш игра. Очень короткая и перепроходить ее желания нет (игра в конце прямым текстом говорит ПРОЙДИ МЕНЯ НА ДРУГИЕ КОНЦОВКИ МЭЭЭЭЭН)
l like the funny blue dog
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| — | 0 | — | — | |
| $13.7M | 80.6K | 97% | $9.99 | |
| $2.3M | 3.6K | 95% | $17.99 | |
| $607.5K | 1.9K | 76% | $9.99 | |
| $145.7K | 520 | 69% | $19.99 | |
| $9.1K | 28 | 82% | $9.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $172.7K | 392 | 63% | $19.99 | |
| $172.9K | 737 | 77% | $11.99 | |
| $172.7K | 1.2K | 87% | $6.99 | |
| $172.7K | 737 | 95% | $7.99 | |
| $172.6K | 217 | 66% | $24.99 | |
| $172.6K | 304 | 95% | $29.99 |