An immersive first-person puzzle escape game set in a lavish mansion, containing intricate mechanical puzzle boxes built for mysterious reasons. Crack their hidden mechanisms, uncover the secrets inside, and solve your way to freedom.

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 25671193
Update posts
3 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 |
|---|---|---|
| 25671193 | 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 |
|---|---|
| 30 Sept 2026 | Update Notes for September 30 Patch notes |
| 18 May 2026 | Update notes for May 18 Patch notes |
| 7 May 2026 | Chapter 5 Bug Fix Patch notes |
| 24 Apr 2024 | Performance and Bugs Fixes Patch notes |
| 3 Apr 2024 | Knight Puzzle and Performance Updates Patch notes |
| App | Players now | Latest build |
|---|---|---|
| Boxes Playtest · App 2776650 | 0 | 13249853 · |
Separate Steam apps for test, staging and playtest versions of Boxes: Lost Fragments. 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
| 12 Mar 2024 |
| Boxes content update Patch notes |
| 10 Feb 2024 | Fixes and polish update Patch notes |
| 24 Jan 2024 | Boxes: Lost Fragments Demo 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