Emergent Game Technologies announced that Firaxis Games' Sid Meier's Civilization IV was developed using Emergent's Gamebryo technology. The latest chapter of the series features an easy-to-use interface, powerful map editor with XML and Python support, flexible tech tree, multiplayer via LAN, Internet, PBEM (Play By E-Mail) and PTBS (Persistent Turn-Based Server), over 70 in-game movies, and more. Civilization IV will be released on October 25th.