A project to derive the map data for the original NES Legend of Zelda game so that it can be used in hobbyist projects.
More info is here: http://inventwithpython.com/blog/2012/12/10/8-bit-nes-legend-of-zelda-map-data/
If you find this project helpful and would like to support its development, consider donating to its creator on Patreon.