SENTRY is an action-defense first person shooter where you defend your spaceship against invading aliens. Plot an escape route through hostile space and battle the enemy across your vessel with the support of traps, turrets and environmental destruction.

Public builds
—No reading yet
Counted once we have watched for 90 days (since 21 Oct 2026)
Distinct builds deployed to a game's public (default) Steam branch, as Steam's client network describes them.
Checked within minutes of each Steam change. Observed since 21 Oct 2026.
Source: Steam client network (PICS), App info, public branch. Full methodology
Latest public build
Build 25991747
Update posts
4 postsPosts announcing an update, tagged or not
Posts in a game's official Steam news feed that announce an update: tagged as patch notes by the developer, or plainly about a patch or a released update.
Source: Steam Web API, ISteamNews/GetNewsForApp. Full methodology
Typical gap between builds
Not enough builds yet| Build | Went live | Patch notes |
|---|---|---|
| 25991747 | Updated Translations for 0.91.29842 |
From Steam’s client network, last checked . Builds before 21 Oct 2026, when we started watching, aren't listed. Patch notes are the developer’s update post from an hour before to a day after the build. Not every build gets one. How we count
| Posted | Update |
|---|---|
| 16 Oct 2026 | Updated Translations for 0.91.29842 Patch notes |
| 30 Sept 2026 | Update notes for Build Version Number 0.91.29842 Patch notes |
| 17 Sept 2026 | The Prologue Update Update |
| 9 Dec 2025 | The Tech Module Update Update |
| 20 Aug 2025 | Updated Translations for 0.8.26715 Patch notes |
| 4 Aug 2025 | Update notes for Build Version Number 0.8.26715 Patch notes |
| 31 Jul 2025 | The Hazards and Crew Update Update |
| 12 Mar 2025 | Updated Translations for 0.7.25599 Patch notes |
| 27 Feb 2025 | Update notes for Build Version Number 0.7.25599 Patch notes |
| 13 Feb 2025 | The Co-op Update Update |
| 12 Jul 2024 | Update notes for Build Version Number 0.6.24541 Patch notes |
| 27 Jun 2024 | Major Update 1: Starfarer (and June Dev Transmission) Update |
| 28 Mar 2024 | Update Notes for 0.5.23844 Patch notes |
Steam keeps no record of past build numbers, so before 21 Oct 2026 a game’s update history comes from its own Steam news: posts tagged as patch notes, and untagged posts that plainly announce a patch or a released update. Older posts are still being read in, most played games first. How we count
| App | Players now | Latest build |
|---|---|---|
| SENTRY Playtest · App 4730070 | 0 | 23586709 · |
Separate Steam apps for test, staging and playtest versions of SENTRY. They have no store page, so they aren’t counted as games or releases. Builds come from Steam’s client network, players from the Steam Web API every few hours. Steam gives no count for an app nobody can launch. How we count