You may use this textures for free in games, even commercial. See LICENSE.txt for details. Please also have a look on my other projects: Gamvas - a HTML5 game engine for the canvas element http://gamvas.com Brukkon - a puzzle game using the skybox textures http://93i.de/cms/products/games/brukkon Kind Regards, Heiko Irrgang <hi@93-interactive.com>