Security 51 is an atmospheric horror security guard simulator where you control access to the secret underground complex of Area 51. Behind the ordinary security checkpoint lies a massive bunker with unknown levels, laboratories, and facilities that personnel are forbidden from knowing about. Check documents, compare data, and decide who to allow inside, because a wrong decision can lead to much more than a simple security breach. Check each one and look for inconsistencies Verify names, positions, access levels, and visit times, monitor the number of people entering and exiting, and pay attention to details that could give away the offender. Gradually, a routine check turns into a full-fledged investigation, as not only obvious errors but also overly correct documents, strange answers, or behavior that cannot be explained by ordinary human error become suspicious. Fingerprints, blood tests, and other procedures will help determine whether the person in front of you is who they claim to be. If the situation seems dangerous, quarantine the suspicious person and observe the consequences of your decision. Sometimes you'll mistakenly quarantine an ordinary employee, and sometimes you'll discover something far more serious has occurred behind closed doors. Some consequences will be immediate, while others will take several shifts to become apparent. Features of the game Horror simulator of a security guard in Area 51. Verification of documents and access levels. Identification and quarantine system. Consequences of decisions and threat development.