If you like The Witness, you might like a puzzle game I'm currently making. It's called Taiji and you can learn a bit more about it here: http://taiji-game.com/about
In this video, I examine the opening area of The Witness in great depth, with an emphasis on how the game communicates ideas non-verbally.
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https://www.youtube.com/watch?v=K9eeYrQ9Dek