Mesozoic Dawn is a multiplayer online dinosaur survival game. Starting as a vulnerable juvenile dinosaur, you must navigate the perils of the prehistoric wilderness, utilizing the core "Growth + Nesting = Evolution" system to achieve leapfrog species iteration and evolution.

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 26072674
Update posts
10 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 |
|---|---|---|
| 26072674 | 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 |
|---|---|
| 17 Oct 2026 | Mesozoic Dawn Version 0.8.46 Update Update |
| 10 Oct 2026 | Mesozoic Dawn Version 0.8.43 Update Update |
| 24 Sept 2026 | Mesozoic Dawn Version 0.8.37 Update Update |
| 26 Aug 2026 | Mesozoic Dawn Version 0.8.31 Update Update |
| 7 Aug 2026 | Mesozoic Dawn Version 0.8.27 Update Update |
| 18 Jul 2026 |
| Mesozoic Dawn Version 0.8.25 Update Update |
| 2 Jul 2026 | 0.8.23 (133) Version Update Notes Update |
| 28 Jun 2026 | 0.8.22 (130) Version Update Notes Patch notes |
| 22 Jun 2026 | Patch Notes: Version 0.8.22 (123) Patch notes |
| 15 Jun 2026 | 0.8.17 Update Log & Optimization Announcement 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