Several independent works are being distributed along with Tiled that fall under different licenses. You can find the license that applies to each file in the comment at the top, but for clarity they are also listed here: Software Directory License ------------------------------------------------------------------- Tiled src/tiled GPL Tiled plugins src/plugins GPL libtiled src/libtiled BSD 2-clause license libtiled-java util/java/libtiled-java BSD 2-clause license qtpropertybrowser src/qtpropertybrowser BSD 3-clause license tmxrasterizer src/tmxrasterizer BSD 2-clause license tmxviewer src/tmxviewer BSD 2-clause license tmxviewer-java util/java/tmxviewer-java BSD 2-clause license The full text of each license is provided in the files LICENSE.GPL and LICENSE.BSD.