How to unlock
Air Train 10,000 air units.
Ambassador Finish a multiplayer game.
Archaeologist Collect 5,000 resources from ruins.
Armageddon Finish a game in Armageddon.
Artillery Train 50,000 artillery units.
Assassin Win Assassin.
Big Huge Win on a Big Huge Map.
Brigadier Win 25 games.
CIA Spymaster Complete Espionage as the USA.
Colonel Win 10 games.
Conqueror Capture a city.
Decon Destroy 10,000 buildings.
Economical Guru Collect 1,000,000 resources.
Field Marshal Win 100 games.
Footsteps Complete the Alexander the Great Campaign.
General Win 50 games.
Generous Send resources to an ally.
Genius Research 4 finals in game.
Good Ear Win Musical Chairs.
Grand Architect Build 10,000 buildings.
KGB Spymaster Complete Espionage as the Soviets.
Knockout Knockout in Sudden Death.
Marco Polo Gain control of 250 rare resources.
Mass Cavalry Train 1,000,000 cavalry units.
Mass Infantry Train 1,000,000 infantry units.
Master Of War Beat Toughest.
Napoleon Complete the Napoleon Campaign.
Naval Train 25,000 naval units.
New World Complete the New World Campaign.
Sacrificer Lose 100,000 units.
Science Nerd Win Peaceful Tech Race.
Skilled Get a high score on any skill.
Student Of War Beat Tougher.
Supreme Complete the World Map Campaign.
Tactical Kill 50,000 units.
Territory Win Territory.
Thawed Complete the Cold War Campaign.
Wonder Win Wonder.