O2Jam : The Beginning is the official PC version based on O2Jam - Music & Game, featuring the entire series collection. Enjoy legendary original tracks, overwhelming note impact, and various key modes! From nostalgic classics to new hits, experience the authentic rhythm action of O2Jam.

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 26314101
Update posts
14 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
3 hoursMiddle gap across the last 7 builds we saw
| Build | Went live | Patch notes |
|---|---|---|
| 26314101 | 'O2Jam : The Beginning' ver. 0.31 Update Notice | |
| 26314087 | None posted | |
| 26155408 | None posted | |
| 26155286 | None posted | |
| 26152491 | None posted | |
| 26152482 | None posted | |
| 25982733 | 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 |
|---|---|
| 1 Oct 2026 | 'O2Jam : The Beginning' ver. 0.28 Update Notice Update |
| 22 Sept 2026 | 'O2Jam : The Beginning' ver. 0.27 Update Notice - New Song Update Update |
| 11 Sept 2026 | 'O2Jam : The Beginning' ver. 0.26 Update Notice Update |
| 20 Aug 2026 | 'O2Jam : The Beginning' ver. 0.25 Update Notice Update |
| 30 Jul 2026 | 'O2Jam : The Beginning' ver. 0.24 Update Notice Update |
| 23 Jul 2026 |
| 'O2Jam : The Beginning' ver. 0.23 Update Notice Update |
| 14 Jul 2026 | 'O2Jam : The Beginning' ver. 0.22 Update Notice Update |
| 24 Jun 2026 | 'O2Jam : The Beginning' ver. 0.21 Update Notice Update |
| 4 Jun 2026 | 'O2Jam : The Beginning' ver. 0.20 Update Notice Update |
| 2 Apr 2026 | 'O2Jam : The Beginning' ver. 0.16 Update Notice Update |
| 18 Mar 2026 | 'O2Jam : The Beginning' ver. 0.15 Update Notice Update |
| 5 Mar 2026 | 'O2Jam : The Beginning' ver. 0.12 Update News Update |
| 25 Feb 2026 | 'O2Jam : The Beginning' ver. 0.11 Update News 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