SunderBound is a co-op top-down shooter with roguelite progression, set in a crumbling mega-tower. Survive floor by floor with a partner you trust, or an AI companion if you’re climbing solo. Every room’s a test. Every upgrade’s earned. And the only way out is up.

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
None seen yetUpdate posts
6 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 yetNo public build seen yet.
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 Sept 2026 | SunderBound Update 0.4.2863.d504e734 Patch Notes Update |
| 5 Aug 2026 | SunderBound Update 0.4.dfdcefe2 Patch Notes Update |
| 24 Jul 2026 | Dev Log #7: Character Ability Updates Update |
| 10 Jun 2026 | SunderBound Update 0.4.2629 Patch Notes Update |
| 22 May 2026 | SunderBound Hotfix Update 0.4.2578.66813d12 Patch notes |
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.