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nigelthezebra: Just got past the first batch of puzzles only to be greeted with a message letting me know I need to purchase the full version of the game to continue, along with a Steam link. I, uh, bought the full version of the game, from GoG. I'd played the demo on Steam a couple years ago and obviously got the same situation, but this time I own the game. What's going on?
Please re-download the Mac version as this has been resolved :)