Explore the lost colony of Tau Ceti IV, scavenging valuable loot in a high-stakes survival first person shooter from the creators of Halo and Destiny.

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 26136895
Update posts
38 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 |
|---|---|---|
| 26136895 | Marathon Update 1.1.9.6 | |
| 25963120 | Marathon Update 1.1.9.5 |
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 |
|---|---|
| 20 Oct 2026 | Marathon Update 1.1.9.5 Update |
| 13 Oct 2026 | Marathon Update 1.1.9.4 Update |
| 8 Oct 2026 | Marathon Update 1.1.9.3 Update |
| 6 Oct 2026 | Marathon Update 1.1.9.2 Update |
| 15 Sept 2026 | Marathon Update 1.1.9.1 Update |
| 1 Sept 2026 |
| App | Players now | Latest build |
|---|---|---|
| Marathon Closed Technical Test · App 3547690 | Not yet | 20364077 · |
Separate Steam apps for test, staging and playtest versions of Marathon. 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
| Marathon Update 1.1.9 Update |
| 25 Aug 2026 | Marathon Update 1.1.5.5 Update |
| 18 Aug 2026 | Marathon Update 1.1.5.4 Update |
| 11 Aug 2026 | Marathon Update 1.1.5.3 Update |
| 4 Aug 2026 | Marathon Update 1.1.5.2 Update |
| 28 Jul 2026 | Marathon Update 1.1.5.1 Update |
| 21 Jul 2026 | Marathon Update 1.1.5 Update |
| 9 Jul 2026 | Marathon Update 1.1.0.5 Update |
| 7 Jul 2026 | Marathon Update 1.1.0.4 Update |
| 23 Jun 2026 | Marathon Update 1.1.0.3 Update |
| 16 Jun 2026 | Marathon Update 1.1.0.2 Update |
| 9 Jun 2026 | Marathon Update 1.1.0.1 Update |
| 6 Jun 2026 | Marathon Open Play Week and Progression Update Update |
| 2 Jun 2026 | Marathon Update 1.1.0 Update |
| 26 May 2026 | Marathon Update 1.0.9.1 Update |
| 19 May 2026 | Marathon Update 1.0.9 Update |
| 7 May 2026 | Marathon Game Security Update Update |
| 5 May 2026 | Marathon Update 1.0.6.3 Update |
| 28 Apr 2026 | Marathon Update 1.0.6.2 Update |
| 21 Apr 2026 | Marathon Update 1.0.6.1 Update |
| 17 Apr 2026 | "UPDATE: WTF WSTRs" from Game Director, Joe Ziegler Update |
| 14 Apr 2026 | Marathon Update 1.0.6 Update |
| 13 Apr 2026 | "UPDATE: DIRE MARSH SPONSORED" from Game Director Joe Ziegler Update |
| 7 Apr 2026 | Cheater Update from Marathon's Dev Team Update |
| 7 Apr 2026 | Marathon Update 1.0.5.3 Update |
| 31 Mar 2026 | Duos Update: A Candle Lit Dinner on Outpost Update |
| 31 Mar 2026 | Marathon Update 1.0.5.2 Update |
| 24 Mar 2026 | Marathon Update 1.0.5.1 Update |
| 17 Mar 2026 | Marathon Update 1.0.5 Update |
| 14 Mar 2026 | Marathon Week 2: Updates, Fixes, and More Update |
| 11 Mar 2026 | Marathon Update 1.0.0.4 Update |
| 11 Mar 2026 | Marathon Rewards Pass Update Update |
| 30 Apr 2025 | Marathon Closed Alpha Update 0.5.0.2 Patch notes |
| 18 Apr 2025 | Marathon Closed Alpha Update 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