opus magnum file locations

windows

puzzles: C:\Users\[YOU]\Documents\My Games\Opus Magnum\[NUMBERS]\custom\
solutions: C:\Users\[YOU]\Documents\My Games\Opus Magnum\[NUMBERS]\

if you are using OneDrive, the files may be in C:\Users\[YOU]\OneDrive\Documents\My Games\Opus Magnum\ instead

linux

puzzles: /home/[YOU]/.local/share/Opus Magnum/[NUMBERS]/custom/
solutions: /home/[YOU]/.local/share/Opus Magnum/[NUMBERS]/

macos

puzzles: /Users/[YOU]/Library/Application Support/Opus Magnum/[NUMBERS]/custom/
solutions: /Users/[YOU]/Library/Application Support/Opus Magnum/[NUMBERS]/

the Library folder is hidden on macOS by default; you may have use Go > Go to Folder… in Finder to navigate there

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