Blast, slide, and tear through waves of monsters in Harbinger's retro-inspired combat, a free boomer shooter bringing '90s combat into the modern era. Fight through waves of enemies in brutal arenas and regroup at the tavern to upgrade your arsenal.

Public builds
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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 23379604
Update posts
1 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 |
|---|---|---|
| 23379604 | Harbinger Update Notes - May 23rd |
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 |
|---|---|
| 23 May 2026 | Harbinger Update Notes - May 23rd Patch notes |
| 26 Jun 2025 | Harbinger Update Notes - June 26th Patch notes |
| 10 Jun 2025 | Harbinger Update Hotfix - June 9th Patch notes |
| 10 Jun 2025 | Harbinger Update Notes - June 9th Patch notes |
| 21 Oct 2024 | Harbinger Update Notes - October 21st Patch notes |
| 7 Oct 2024 |
| Harbinger Update Notes - October 6th Patch notes |
| 5 Oct 2024 | Harbinger Update Notes - October 5th 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