Welcome to the ORTS competition page. The third RTS game AI competition will be held August 1-8, 2008. On this page you can find descriptions of the game categories, the tournament rules, and a brief ORTS overview. We encourage students, AI researchers, and hobbyists interested in real-time strategy games to get familiar with the ORTS project and to participate in this year’s competition. Everybody is welcome. Game 1,2,3 are identical (except for hp changes), but we added 20 siege tanks to game 4, to encourage working on tactical AI for heterogenous forces. Also, programs are now allowed to save data in directory ~/game-data, which can be used to implement opponent modeling algorithms.