This first expansion pack adds a barrage of new features to the original game. Combining the epic scope of traditional turn-based strategy games with the fast-paced action of RTS games, Rise of Nations: Thrones & Patriots enables players to explore 6,000 years of history as they amass powerful armies, build prosperous economies and perform acts of diplomacy. Developed by Brian Reynolds and Big Huge Games, Rise of Nations: Thrones and Patriots adds the Americans, Persians and four other new nations; as well as four new historical single player campaigns, including Napoleon and the Cold War. The expansion adds more than 20 new units, such as massive Persian war elephants and US Marines. Players can build new strategic wonders and create governments for their nation. After creating a government, any nation, old or new, can choose exactly how to be governed, which has far-reaching effects on how units perform in various situations. The all-new single player campaigns allow gamers to control the course of history during historical events that changed the world.