SublustrumStore listing and news feed checked 2026-10-13.
Confirm this Sublustrum, then check the playtest and release window
This is Steam app 4151300, from Brickworks Games and HypeTrain Digital. It is not released. On 2026-10-13 the Steam page listed a Q1 2027 window, no price, and no user reviews. The store text and the official site describe a first-person remake of the 2008 adventure in which sound carries the story and the puzzles.
The open playtest runs from October 12 through October 25, 2026, and the announcements call it Chapter One. How to request access.
The current window is Q1 2027. A November 2025 announcement had said Fall 2026. The two statements, and the missing price.
These stay on their own pages: what the remake changes from 2008, the published PC specs, and the dated developer news.
Listing facts
| App | 4151300, Sublustrum |
|---|---|
| Developer | Brickworks Games |
| Publisher | HypeTrain Digital |
| Status | Coming soon. Release window Q1 2027. No price is listed. |
| Reviews | No user reviews. |
| Genre and mode | Adventure and Indie. Single-player. |
| Systems | Windows is listed. Mac and Linux are not. |
| Languages | English and Russian are marked for full audio. Also listed: French, German, Italian, Japanese, Korean, Simplified Chinese, Polish, Portuguese - Brazil, and Spanish - Latin America. |
| Achievements | Steam lists an Achievements category. No achievement list was published. The global percentages request returned HTTP 403 with an empty body. |
| Trailers | Two are on the Steam page: “Sublustrum - Official Open Playtest Trailer” and “Sublustrum – Official Trailer Announcement [EN]”. This guide does not describe them. No transcript was captured. |
Premise, as the official pages state it
The store text and the official site both describe a missing brother, a machine meant to reach the subconscious, and a place called the Flickering World. The official site calls the player character a writer. The store page calls the opening a visit to the brother's home. Both say sound is part of solving, not only part of the score. A chapter count, a puzzle solution, and a price are not on those pages. Those two pages are listed under Sources.