README - (This file.) Game story, usage, rules and controls.
WHATSNEW.txt - Changes since the previous versions of SuperTux.
COPYING - The GNU General Public License, under whose terms
- SuperTux is licensed. (The data subdiretory is also
+ SuperTux is licensed. (Most of the data subdiretory is also
licensed under CC-by-SA)
docs/levelguidelines.txt - Very useful information for those that want to design
levels for SuperTux.