The fight is here, humanity’s fate is in your hands! Match up different offensive and defensive upgrades between waves and fend off the onslaught of zombies. Level up and strengthen core abilities and progress to new areas where strains of the virus have evolved.

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 7918376
Update posts
0 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 |
|---|---|---|
| 7918376 | v1.4.2 Update log |
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 |
|---|---|
| 22 Dec 2021 | v1.4.2 Update log Update |
| 4 Nov 2021 | Hotfix Notes for November 4 Patch notes |
| 28 Oct 2021 | The Mutation 2.0 Update Note Update |
| 3 Sept 2021 | Hotfix notes for September 3rd Patch notes |
| 20 Aug 2021 | Hotfix notes for August 20 Patch notes |
| 16 Aug 2021 |
| Hotfix notes for August 16 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