Cut through thousands of undead and survive until rescue. ZedFall: Outbreak is a co-op twin‑stick roguelike where levelling and evolving upgrade cards unleash chaotic builds. Fight to the chopper, hold the generator in Tower Defence, or Scavenge supplies. Play solo or with up to 7 of your friends.

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 26381047
Update posts
8 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
16 hoursMiddle gap across the last 5 builds we saw
| Build | Went live | Patch notes |
|---|---|---|
| 26381047 | None posted | |
| 26367150 | None posted | |
| 26359008 | None posted | |
| 26354382 | None posted | |
| 25942705 | Update Notes for 14th October 2026 |
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 |
|---|---|
| 14 Oct 2026 | Update Notes for 14th October 2026 Update |
| 3 Oct 2026 | Update Notes for 3rd October 2026 Update |
| 2 Oct 2026 | Update Notes for 2nd October 2026 Update |
| 28 Sept 2026 | Update Notes for 28th September 2026 Update |
| 24 Sept 2026 | Update Notes for 24th September 2026 Update |
| App | Players now | Latest build |
|---|---|---|
| ZedFall: Outbreak Playtest · App 5078980 | Not yet | 25014842 · |
Separate Steam apps for test, staging and playtest versions of ZedFall: Outbreak. 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
| 22 Sept 2026 |
| Update Notes for 23rd September 2026 Update |
| 21 Sept 2026 | Update Notes for 21st September 2026 Update |
| 19 Sept 2026 | Update Notes for 19th September 2026 Update |
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