The book by the blue — Steam game overview

Stored observation / content update: 2026-10-26T10:35:07.000Z

in this First-person horror game you will be discovering what's going on with missing persons and a corrupt scientist. Find items littered around to access locked doors and secret passages.

Game metrics below are stored observations; missing values are unknown.

Revenue is modelled, not confirmed sales. See the methodology and uncertainty range.