Edition - Dawn of the Dukes Star Wars: Galactic Battlegrounds Star Wars: Galactic Battlegrounds: Clone Campaigns Legacy The games based on the engine have usually been rated highly with Age of Empires having sold over three million copies by 2000 and having an average score of 87% from GameRankings. The Age of Kings was a bigger critical success than the first game, with Game Rankings and Metacritic scores of 92%. The Age of Empires expansions for both games received slightly less praise but were still very well received. Star Wars: Galactic Battlegrounds received generally positive reviews, both from critics and fans. GameRankings gave the game a score of 77%, based on 38 media outlets. However, Galactic Battlegrounds did have vocal critics. The Genie engine was succeeded by the Age of Mythology engine used by the games in that series as well as Age of Empires III and its expansions. The most significant changes are the updated graphics engine and the inclusion of the Havok physics middleware engine, as well as the introduction of home cities. The design of the Genie engine has been mirrored in later game titles such as Empire Earth, Cossacks: European Wars, Theocracy, Tzar: Burden of the Crown, and Rise of Nations. Most of these games have also been critically successful. The in-development free software real time strategy game 0 A.D. by Wildfire Games started out as an Age of Empires II modification and boasts many similarities to Age of Empires in its current design on top of its new engine Pyrogenesis. Openage is another free software project trying to create a modern re-implementation of the original Genie Engine using C++ and Python. References External links Ensemble Studios: the developers of the engine 1997 software Genie Engine games Video game engines