A sci-fi space station defense auto-shooter where you repel enemy fleets with missiles, mass drivers, phase weapons, and railguns. Upgrade your arsenal, adapt your build, and hold the line against overwhelming odds.

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 23012880
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 |
|---|---|---|
| 23012880 | Patch Notes - v1.1.4 |
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 |
|---|---|
| 29 Apr 2026 | Patch Notes - v1.1.4 Patch notes |
| 24 Apr 2026 | Patch Notes - v1.1.3 Patch notes |
| 22 Apr 2026 | Patch Notes - v1.1.2 Patch notes |
| 22 Apr 2026 | v1.1.1 — Core Reward Display Fix 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 |
|---|---|---|
| STELLAR BASTION Playtest · App 4530010 | Not yet | 22638334 · |
Separate Steam apps for test, staging and playtest versions of STELLAR BASTION. 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