"Arai-san Mansion Exploration Game: Incarnation" is a command-based text adventure based on the "Kemono Friends". As an investigator, explore an eerie mansion with astronomical floors. Use your skills and Ally cards to survive anomalies, and find a way to contain the mystery.

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 26137430
Update posts
33 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
24 hoursMiddle gap across the last 4 builds we saw
| Build | Went live | Patch notes |
|---|---|---|
| 26137430 | v1.1.0.2→v1.1.0.3 | |
| 26137245 | None posted | |
| 26110748 | v1.1.0.1→v1.1.0.2 | |
| 25879585 | v1.1.0.0→v1.1.0.1 |
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 |
|---|---|
| 12 Oct 2026 | v1.1.0.0→v1.1.0.1 Patch notes |
| 9 Oct 2026 | Major Update "Further Achievements" Released Update |
| 9 Oct 2026 | Major update scheduled for tonight, Japan time. Update |
| 11 Sept 2026 | Scenario Update Announcement Update |
| 16 Aug 2026 | v1.0.1.20→v1.0.1.21 Patch notes |
| 3 Aug 2026 |
| v1.0.1.19→v1.0.1.20 Patch notes |
| 29 Jul 2026 | v1.0.1.18→v1.0.1.19 Patch notes |
| 24 Jul 2026 | v1.0.1.17→v1.0.1.18 Patch notes |
| 19 Jul 2026 | v1.0.1.16→v1.0.1.17 Patch notes |
| 11 Jul 2026 | v1.0.1.15→v1.0.1.16 Patch notes |
| 8 Jul 2026 | v1.0.1.14→v1.0.1.15 Patch notes |
| 7 Jul 2026 | v1.0.1.13→v1.0.1.14 Patch notes |
| 6 Jul 2026 | v1.0.1.12→v1.0.1.13 Patch notes |
| 2 Jul 2026 | v1.0.1.11→v1.0.1.12 Patch notes |
| 1 Jul 2026 | v1.0.1.10→v1.0.1.11 Patch notes |
| 29 Jun 2026 | v1.0.1.9→v1.0.1.10 Patch notes |
| 28 Jun 2026 | v1.0.1.8→v1.0.1.9 Patch notes |
| 27 Jun 2026 | v1.0.1.7→v1.0.1.8 Patch notes |
| 26 Jun 2026 | v1.0.1.6→v1.0.1.7 Patch notes |
| 23 Jun 2026 | v1.0.1.5→v1.0.1.6 Patch notes |
| 22 Jun 2026 | v1.0.1.3→v1.0.1.4→v1.0.1.5 Patch notes |
| 19 Jun 2026 | v1.0.0.9→v1.0.1.1→v1.0.1.2→v1.0.1.3 Patch notes |
| 13 Jun 2026 | v1.0.0.8→v1.0.0.9 Patch notes |
| 7 Jun 2026 | v1.0.0.7→v1.0.0.8 Patch notes |
| 6 Jun 2026 | v1.0.0.6→v1.0.0.7 Patch notes |
| 31 May 2026 | v1.0.0.5→v1.0.0.6 Patch notes |
| 30 May 2026 | v1.0.0.4→v1.0.0.5 Patch notes |
| 28 May 2026 | v1.0.0.3→v1.0.0.4 Patch notes |
| 27 May 2026 | v1.0.0.2→v1.0.0.3 Patch notes |
| 26 May 2026 | v1.0.0.1→v1.0.0.2 Patch notes |
| 24 May 2026 | v1.0.0.0→v1.0.0.1 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. How we count