Foundation is a grid-less, laidback medieval city-building game with a focus on organic development, monument construction and resource management.

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 26138506
Update posts
18 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 |
|---|---|---|
| 26138506 | Hotfix 1.12.0.16 is live | |
| 25941933 | Hotfix 1.12.0.15 is live |
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 | Hotfix 1.12.0.15 is live Patch notes |
| 9 Oct 2026 | Patch 1.12.0.14 is live! Patch notes |
| 9 Oct 2026 | Hotfix 1.12.0.13 is live Patch notes |
| 8 Oct 2026 | Hotfix 1.12.0.12 is live Patch notes |
| 28 Jul 2026 | Hotfix 1.11.0.19 is live Patch notes |
| 8 Jul 2026 |
| App | Players now | Latest build |
|---|---|---|
| Foundation Playtest · App 3053800 | 0 | 25761613 · |
Separate Steam apps for test, staging and playtest versions of Foundation. 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
| Patch 1.11.0.18 is now live Patch notes |
| 15 Apr 2026 | Patch 1.11.0.17 is live Patch notes |
| 24 Feb 2026 | Hotfix 1.11.0.16 is live Patch notes |
| 20 Feb 2026 | Hotfix 1.11.0.15 is live Patch notes |
| 19 Feb 2026 | Patch 1.11.0.14 is live Patch notes |
| 23 Jan 2026 | Hotfix 1.11.0.13 is live Patch notes |
| 22 Jan 2026 | Patch 1.11.0.12 is live Patch notes |
| 11 Dec 2025 | Hotfix 1.11.0.11 is live Patch notes |
| 4 Dec 2025 | Hotfix 1.11.0.10 is live Patch notes |
| 28 Nov 2025 | Hotfix 1.11.0.9 is live Patch notes |
| 27 Nov 2025 | Hotfix 1.11.0.8 is live Patch notes |
| 26 Nov 2025 | Update 1 - Quality of Life Update is now live! Update |
| 21 Aug 2025 | Patch 1.10.3.12 is live! Patch notes |
| 31 Jul 2025 | Patch 1.10.3.11 is live! (The RX500 patch) Patch notes |
| 4 Jun 2025 | Patch 1.10.3.10 is live Patch notes |
| 22 May 2025 | Hotfix 1.10.3.9 is live Patch notes |
| 22 May 2025 | Patch 1.10.3.8 is live Patch notes |
| 30 Apr 2025 | Hotfix 1.10.3.7 is live Patch notes |
| 30 Apr 2025 | Patch 1.10.3.6 is now live Patch notes |
| 11 Apr 2025 | Hotfix 1.10.3.5 is now live Patch notes |
| 9 Apr 2025 | Patch 1.10.3.4 is now live Patch notes |
| 26 Mar 2025 | Update 1.10.3.3 is live + Ukrainian language Patch notes |
| 20 Mar 2025 | Update 1.10.3.2 is live + Czech and Thaï languages Patch notes |
| 26 Feb 2025 | Patch 1.10.2.15 is now live Patch notes |
| 21 Feb 2025 | Patch 1.10.2.14 is now live Patch notes |
| 19 Feb 2025 | Patch 1.10.2.13 is now live Patch notes |
| 13 Feb 2025 | Patch 1.10.2.12 is now live Patch notes |
| 11 Feb 2025 | Update 1.10.2.11 is live + Polish and Vietnamese languages Patch notes |
| 8 Feb 2025 | Update 1.10.2.10 is live - Adding the Korean language Patch notes |
| 6 Feb 2025 | Hotfix 1.10.2.9 is now live Patch notes |
| 5 Feb 2025 | Hotfix 1.10.2.8 is now live Patch notes |
| 5 Feb 2025 | Hotfix 1.10.2.7 is now live Patch notes |
| 3 Feb 2025 | Hotfix 1.10.2.6 is now live Patch notes |
| 2 Feb 2025 | Hotfix 1.10.2.4 is now live Patch notes |
| 31 Jan 2025 | Patch 1.10.2.1 is now live Patch notes |
| 9 Jan 2025 | Foundation Demo: Patch notes - 1.10.0.8.0109 Patch notes |
| 5 Jan 2025 | Foundation Demo: Patch notes - 1.10.0.7.0104 Patch notes |
| 21 Dec 2024 | Foundation Demo: Patch notes - 1.10.0.6.1220 Patch notes |
| 18 Dec 2024 | Foundation Demo: Patch notes - 1.10.0.5.1216 Patch notes |
| 19 Sept 2024 | Patch 1.9.7.9 is now live Patch notes |
| 6 Feb 2024 | Patch 1.9.7.8 is now live Patch notes |
| 21 Dec 2023 | Patch 1.9.7.7 is now live Patch notes |
| 18 Dec 2023 | Patch 1.9.7.6 is now live Patch notes |
| 15 Dec 2023 | Patch 1.9.7.5 is now live! Patch notes |
| 14 Dec 2023 | The 1.9.7 QOL Update is Now Live! Update |
Showing the latest 50 of 183. 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