The Last of Us - Level and puzzle design

Ive begun to research some games that are considered to have good level design.

The Last of Us documentary 'Grounded: The making of The Last of Us', feature some good interviews which discuses how the developers design there puzzles and levels

http://youtu.be/R0l7LzC_h8I?t=1h13m46s

Main features from The Last of US level design:

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