Status
SteamPeaks
ChartsSalesUpcomingPatchesNewsCalculator
New on SteamEvery app, DLC and depot the minute Steam creates itAppsEvery app on Steam, newest change firstPackagesSubs and bundles, and what each containsDepotsDepots, manifests and install sizesTagsSteam's user tags and the games under themDevelopers & publishersCompanies and their cataloguesTechnologiesEngines, SDKs and anti-cheat found in the filesChange historyEvery PICS changelist as it lands
SignalsNineteen readings of the whole catalogueCompareAny games side by sideRecordsAll-time peaks and the days they were setReportsWeekly and monthly write-upsAlerts & newsroomWatch a game, get told when it movesSteam statusIs Steam up, right nowWeb API explorerTry the endpoints in the browser
NewsSteam's own announcements and the sales calendarCalculatorWhat a Steam account is worth, and its pile of shame
/
Sign in
/
SteamPeaks
The ultimate resource for Steam data.
ExploreChartsSalesSales and festsUpcomingPatchesNewsRecordsTrendingSignals
DatabaseAppsPackagesDepotsTagsDevelopersTechnologiesChange history
ToolsCalculatorCompareSearchAlertsSteam statusAPI
SiteMethodologyFAQDiscordSupportSign in via Steam
Not affiliated with Valve or Steam. Game names and artwork belong to their owners. All times UTC.
PrivacyCookiesFair useStatus
NecrosmithNewsJoin the Security 51 Playtest, A New Game by Alawar
Esports

Join the Security 51 Playtest, A New Game by Alawar

Necrosmith · published 21 May 2026, 11:26 UTC

All newsPlayers around this dateRead on Steam

Dear agents,

Security 51 is a simulator of an Area 51 security officer. Guard the elevator decending from the surface into the endless depths of the underground laboratories. Only you decide who goes in and who gets to leave. Verify papers, passes, and constantly check the manual. It is above your pay grade to know if the person is a human – just check the IDs, punch the pass, and don't think about it. After all, you didn't see anything, right?

Start your Playtest shift

The open playtest is available on Steam, and you can jump in right away. Remember, the security of Area 51 depends on you:  

  • Follow the protocol – verify papers, take photos of employees, and deny access to anyone who fails inspection.  

  • Inspect carefully – use X-Ray to inspect bones, examine internal organs, measure body temperature, and look for strange inflammations or anomalies on the skin. They will try to cheat on security checks – make sure they fail.

  • Take care of yourself – such responsibility can drive you mad. Maintain your mental condition and make sure you eat enough. We wouldn’t want anything to happen to you, right?

  • Contain the threat inside the facility - the elevator doesn't just go down; it goes up as well. Watch carefully who steps out of it and make difficult decisions to protect the outside world from the horrors hidden within the laboratories.

This is an early version of the game. Some features may be unavailable, and you may encounter unfinished mechanics or systems that will be improved in future versions. Please keep this in mind while playing.

This playtest is a key part of development and your feedback directly affects how the game evolves. After playing, please fill out the in-game survey (available in the main menu) or share your thoughts in Steam discussions.

Join the playtest and wishlist the game on Steam to stay updated on future builds, demo release, and development progress:

More from Necrosmith

Other announcements

All news
Esports28 Apr 2026The Last Gas Station is out now!The Last Gas Station is a cozy management game about running a small roadside gas station at the edge of nowhere. Clean up the shop, restock shelves, serve passing travelers, improve your little business, and uncover the quiet mysteries that come alive after dark. Step into a calm world of cozy routines, quirky locals, small mysteries, and the simple rhythm of building something with your own h…Esports10 Mar 2026Haunted Lands is Out NowHaunted Lands is a brutal retro action platformer developed by solo dev Alevgor. Step into cursed burial grounds, forgotten crypts, and ghost towns crawling with restless spirits and nightmarish creatures. Choose from six unique heroes , each built for a different playstyle. Fight from a safe distance, crush enemies in brutal close combat, or experiment with abilities and artifacts to carve you…Esports11 Nov 2025Wall World 2 is out now!The Wall opens its depths once again. New mysteries, new dangers, new answers await those brave enough to dig deeper. Every layer hides a story. Every spark of your drill brings you closer to the truth buried deep in the Wall’s core. About the game: Wall World 2 expands the beloved mining roguelite adventure with new biomes, enemies, and weapons, along with deeper upgrade systems and fresh mech…