https://web.archive.org/web/20121004194000/http://wildfiregames.com/0ad/page.php?p=1492 A page on the old web site about the history of the project in general.   https://web.archive.org/web/20120814145548/http://www.wildfiregames.com/0ad/page.php?p=6911 Article about the process of choosing to use a 3D engine instead going with a 2D one.