I just finished up the main part of Shenzhen I/O. What a fantastic game. The last time I remember spending so much time thinking about and having so much fun playing a game was when Portal came out.
Shenzhen I/O is also the first game I've played where a review of the game dramatically enhanced my experience. I would not have enjoyed the game if it were not for this review: https://probablydance.com/2016/11/07/lessons-learned-from-shenzhen-io/
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