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.
| App ID | 4246860 |
|---|---|
| App type | Game |
| Developer | Alawar |
| Publisher | Alawar |
| Homepage | https://alawar.com/games/security-51 |
| Release date | 12 August 2026 |
| Release state | released |
| Controller support | full |
| Content descriptors | General Mature Content |
| Localized names | japanese セキュリティ schinese 51区安检站 tchinese 51區安檢站 koreana 시큐리티 51 |
| Store page | store.steampowered.com/app/4246860 |
| Last store refresh | 5 hours ago |
Launch options
| # | Executable | Arguments | OS | Description |
|---|---|---|---|---|
| 0 | Security51.exe | windows | ||
| 1 | Security51.app | macos |
Playing now
50
Updated 2 hours ago
24-hour peak
50
Highest recorded in the last 24 hours
All-time peak
50
12 September 2026 09:50 UTC
Hourly peaks, UTC. All-time peak covers SteamRaw's recorded history.
Regional prices
All Steam store regions, converted to USD at today's exchange rate, compared with the US price. Lowest is the lowest price SteamRaw has recorded for that region.
Loading regional prices…
Price history, US store (USD)
| Date | Price | Regular | Discount |
|---|---|---|---|
| 12 September 2026 06:54 UTC | $9.99 | $9.99 |
| DLC | AppID | Release | Price |
|---|---|---|---|
| No DLC known for this app. | |||
Branches
| Branch | Build ID | Description | Updated | Password |
|---|---|---|---|---|
| public | 25104142 | 3 September 2026 14:41 UTC |
Depots
| Depot | Name | OS | Size | Download | Public manifest | Notes |
|---|---|---|---|---|---|---|
| 4246861 | 2.15 GB | 165.91 MB | 7048812221136188527 | |||
| 4246862 | macos | 2.28 GB | 197.87 MB | 4680085012104017282 |
A build is one published version of the game's files on a branch. Steam assigns a new build ID every time the developer pushes an update, so this list is the update history of the app. The files inside a build (depot manifests) are only readable with an account that owns the game, which SteamRaw does not have yet, so build contents are not shown.
| Build ID | Branch | Updated | First seen |
|---|---|---|---|
| 25104142 | public | 3 September 2026 14:41 UTC | 6 hours ago |
Every appinfo change SteamRaw has observed, grouped by changelist. Tags, features, languages, builds, depots, prices and any other key Steam publishes. Tracking since at least 12 September 2026 05:37 UTC (estimated from the earliest recorded change; the exact first fetch was not stored).
No changes recorded since SteamRaw first saw this app. Every future PICS change will be listed here.
| Changelist | Apps | Packages | Seen | What changed |
|---|---|---|---|---|
| No changelists recorded for this app yet. | ||||
No news for this app.
Full appinfo as delivered by Steam PICS, changenumber 38574838. Also at /api/app/4246860/raw.
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