A high-ranked member of a particular clan will invite members to join, joining has its benefits such as giving players a reputation, a virtual gaming 'home' in which a user can get downloads, and be filled in on the latest news. For example, due to technical reasons most Chinese players play in CGA, which usually has over 6000 online players at a time.ДЄ clan is a community of players within a particular game, and in this case many players in AoC belong to a clan, to get into a clan it usually involves being 'recruited'. There are several other Age of Empires II: The Conquerors servers worldwide. GameSpy was selected by Microsoft as the official replacement for online play, although alternatives are available such as Voobly.

These include the Battle of Agincourt, the saga of Erik the Red, and the Battle of Hastings, among others.ДЄs of June 2006, The MSN Gaming Zone CD-ROM section was shut down for Age of Empires players, as well as many other CD-ROM games. The fourth campaign, Battles of the Conquerors, is actually a group of unrelated single scenarios, each based on a significant historical battle. These are based on Attila the Hun's rise to power, Montezuma's defense against Hernan Cortez, and the adventures of El Cid. The Conquerors adds four additional single player campaigns. Chat commands are introduced in order to communicate more effectively with allied computer players. Additionally, an in-game option has been added to allow the game to automatically replenish Farms after they are exhausted.

Villagers will now automatically start gathering resources if they build resource gathering sites, while siege weapons will not fire if their attack is likely to harm friendly units (though it may not seem like it). Micromanagement is made easier by an improved scripted artificial intelligence of Villagers and siege weapons. Also, infantry are able to garrison in rams, increasing their attack and speed, while ships are able to form formations in order to fight more effectively. New maps were also included which are based on real life geographic locations and new winter and tropical terrain. The Conquerors has new gameplay features and changes such as the game modes Defend the Wonder, King of the Hill, and Wonder Race.

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