Here is the full list of all 38 Rise of Nations: Extended Edition achievements.
Win Assassin
Win Peaceful Tech Race
Knockout in Sudden Death
Win Musical Chairs
Win Territory
Win Wonder
Win on a Big Huge Map
Beat Tougher
Beat Toughest
Finish a multiplayer game
Send resources to an ally
Capture a city
Finish a game in Armageddon
Get a high score on any skill
Complete the World Map Campaign
Complete the Alexander the Great Campaign
Complete the Napoleon Campaign
Complete the New World Campaign
Complete the Cold War Campaign
Complete Espionage as the Soviets
Complete Espionage as the USA
Win 10 games
Win 25 games
Win 50 games
Win 100 games
Research 4 finals in game
Gain control of 250 rare resources
Collect 5,000 resources from ruins
Collect 1,000,000 resources
Kill 50,000 units
Build 10,000 buildings
Train 1,000,000 infantry units
Train 1,000,000 cavalry units
Train 50,000 artillery units
Train 25,000 naval units
Train 10,000 air units
Destroy 10,000 buildings
Lose 100,000 units