CleverRaven/Cataclysm-DDA — pull request #2788 by fergus-dall (2013-09-01 06:20:26+00:00)
Title: Compress maps.txt and overmap data using zlib

For a new world, this reduces the size of the save folder to 2% of its original size (from 7.1 MB to 160 KB).

Doesn't break save compatibility.