Licensed under Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0 http://creativecommons.org/licenses/by-sa/3.0/ ) : 
maps/
graphics/items/generic/use/acorn.png
graphics/items/generic/feathers.png
graphics/items/generic/frgamentturtleshell.png
graphics/items/generic/rattooth.png
graphics/items/generic/squichyclaw.png
graphics/items/generic/tortugasshell.png
graphics/items/use/bread.png
graphics/items/use/cheese.png
graphics/items/use/lettuce.png
graphics/items/use/piberries.png
graphics/items/equipment/boots.png
graphics/sprites/monsters/croc.png
graphics/sprites/hairstyles/hairstyle26.png
graphics/tiles/Indoor/Ship-indoor_x2.png
graphics/tiles/Tree_x3.png

All other files are licensed under GPL. (see file GPL)