: As of May 2025, the Development Book DLC is included for free. It provides behind-the-scenes insights, concept art, and staff reflections, accessible from the main menu after completing the game. System Requirements (Minimum)
: You can manually record thoughts and keep track of relevant information directly within the game interface.
According to Steam , the game is designed to run on modest hardware: Minimum Requirement Windows 7 or macOS 10.10 Yosemite Processor 1.8GHz Dual-Core Memory Graphics Integrated graphics Storage 3 GB available space The Sekimeiya: Spun Glass on Steam
: Includes a diverse soundtrack featuring more than 60 original songs to set the atmospheric tone of the mystery.
: Allows players to quickly navigate to different parts of the story to re-examine events.