#playtest
5 articles
guides
Sublustrum Beginner Guide: October Playtest Preparation
Prepare for Sublustrum’s October Steam playtest: version checks, exploration notes, sound feedback and useful bug reports without puzzle spoilers.
Last updated: 10/13/2026
puzzles
Sublustrum Echophone Hints: Understanding Device Feedback
Understand Sublustrum’s Echophone feedback with spoiler-light, progressive guidance grounded in developer notes for the October 2026 playtest.
Last updated: 10/13/2026
updates
Sublustrum Playtest: Steam Access & October 12–25 Dates
Join the Sublustrum open playtest on Steam: October 12–25, 2026, Chapter One scope, access steps and official feedback links.
Last updated: 10/13/2026
updates
Sublustrum Release Date: Q1 2027 & the 2026 Playtest
Steam now lists Sublustrum for Q1 2027. Separate the full remake’s release window from its October 2026 Chapter One open playtest.
Last updated: 10/13/2026
updates
Sublustrum System Requirements: Official PC Targets
Check Sublustrum’s official minimum and recommended PC requirements, 720p/30 and 1080p/60 targets, storage, DirectX and SSD guidance.
Last updated: 10/13/2026