Civilization IV is an epic journey into the past and future. Players start out with limited resources in the year 4000 BC, and must build up a nation, managing everything from unit creation, resources, buildings, culture, combat, technology and diplomacy. To expand your empire, you must train military units and lead them to war with other nations. 18 civilizations will be available for play including Greek, Roman, Persian, French and American. 

Players can win the game in 1 of 5 ways: Defeat all other civilizations using military force, Conquer two thirds of the game's land and population, Send the first spaceship to Alpha Centauri, Achieve the highest culture ratings over all other civilizations, or Becoming the "World Leader" through United Nations votes.