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 21184695
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 |
|---|---|---|
| 21184695 | None posted |
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 |
|---|---|
| 8 Nov 2025 | Small patch: 2.3.0.1.7 Patch notes |
| 19 Aug 2025 | Quick Hotfix: 2.3.0.1.6 Patch notes |
| 5 Aug 2025 | Quick Hotfix: 2.3.0.1.5 Patch notes |
| 1 Aug 2025 | Quick Hotfix: 2.3.0.1.4 Patch notes |
| 27 Jul 2025 | Quick Hotfix: 2.3.0.1.3 Patch notes |
| 26 Jul 2025 |
| Hotfix: 2.3.0.1.2 Patch notes |
| 9 Apr 2025 | Small patch: 2.3.0.1.1 Patch notes |
| 1 Apr 2025 | April Fools Update: The Zombie Heist Update |
| 31 Dec 2024 | Small patch: 2.3.0.0.9 Patch notes |
| 26 Dec 2024 | Small patch: 2.3.0.0.8 Patch notes |
| 24 Dec 2024 | Small patch: 2.3.0.0.7 Patch notes |
| 19 Dec 2024 | Small patch: 2.3.0.0.6 Patch notes |
| 8 Dec 2024 | Small patch: 2.3.0.0.5 Patch notes |
| 3 Dec 2024 | Small patch: 2.3.0.0.4 Patch notes |
| 23 Nov 2024 | datacenter console spam fix Patch notes |
| 23 Nov 2024 | Small patch: 2.3.0.0.3 Patch notes |
| 19 Nov 2024 | Small patch: 2.3.0.0.2 Patch notes |
| 15 Nov 2024 | Quick patch: 2.3.0.0.1 Patch notes |
| 20 Sept 2024 | Small patch: 2.2.1.24 Patch notes |
| 12 Jun 2024 | Small patch: 2.2.1.23 Patch notes |
| 9 Jun 2024 | Small patch: 2.2.1.22 Patch notes |
| 5 Jun 2024 | Small patch: 2.2.1.21 Patch notes |
| 3 Jun 2024 | Small patch: 2.2.1.20 Patch notes |
| 31 May 2024 | Small patch: 2.2.1.19 Patch notes |
| 29 Mar 2024 | Small patch: 2.2.1.18 Patch notes |
| 6 Mar 2024 | Patch Version: 2.2.1.17 Patch notes |
| 26 Feb 2024 | Patch Version: 2.2.1.16 Patch notes |
| 22 Feb 2024 | Patch Version: 2.2.1.15 Patch notes |
| 19 Feb 2024 | Patch Version: 2.2.1.14 Patch notes |
| 15 Feb 2024 | Super Small Hotfix Patch notes |
| 7 Jul 2023 | Hotfix: 2.2.1.10 Patch notes |
| 25 Jun 2023 | Hotfix: 2.2.1.9 Patch notes |
| 11 Apr 2023 | Hotfix: 2.2.1.8 Patch notes |
| 29 Mar 2023 | Patch: 2.2.1.7 Patch notes |
| 26 Mar 2023 | Patch: 2.2.1.6 Patch notes |
| 24 Mar 2023 | Hotfix 2.2.1.5 Patch notes |
| 24 Mar 2023 | Patch 2.2.1.4 Patch notes |
| 18 Mar 2023 | Private lobbies hotfix Patch notes |
| 18 Mar 2023 | Hotfix: 2.2.1.3 Patch notes |
| 20 Jun 2022 | Small Update: 2.2.1.1 Patch notes |
| 6 May 2022 | Small Update: 2.2.1.0 Patch notes |
| 29 Apr 2022 | Small Update: 2.2.0.9 Patch notes |
| 27 Apr 2022 | Small Update: 2.2.0.8 Patch notes |
| 14 Apr 2022 | Quick Hotfix v2.2.0.7 Patch notes |
| 10 Apr 2022 | Quick Hotfix v2.2.0.6 Patch notes |
| 25 Jan 2022 | Small Update: 2.2.0.4 Patch notes |
| 30 Dec 2021 | End of The Year Small Update Patch notes |
| 15 Nov 2021 | Quick Hotfix v2.2.0.2 Patch notes |
| 12 Nov 2021 | Small Update: 2.2.0.1 Patch notes |
| 28 Oct 2021 | Client Hotfix Patch notes |
Showing the latest 50 of 150. Show all
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
Contagion isn't your average Zombie Shooter but instead takes a more realistic and different approach to the popular genre with unique characters, environments, weapons, items, and a built in system that makes every round completely unpredictable with resources, objectives, and paths ever changing.
