After bricking two virtual machines and reading 40 forum posts in Japanese (courtesy of DeepL), here is the definitive method for a clean install of Cyan Brain Demo 81 on Windows 10/11 (and via Wine on Linux).
: Most describe the difficulty as manageable but punishing at times due to high enemy firepower and early-game checkpoints. cyan brain demo 81 nekouji studio best install
: Early-game checkpoints can be punishing. Some players recommend playing on Easy to bypass "spongy" enemies and focus on the story and atmosphere. After bricking two virtual machines and reading 40