Full list of all 38 Rise of Nations: Extended Edition achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Kill 50,000 units
Destroy 10,000 buildings
Build 10,000 buildings
Beat Toughest
Beat Tougher
Finish a game in Armageddon
Complete Espionage as the Soviets
Complete the Cold War Campaign
Complete Espionage as the USA
Complete the New World Campaign
Win 100 games
Complete the Napoleon Campaign
Train 1,000,000 cavalry units
Train 1,000,000 infantry units
Complete the Alexander the Great Campaign
Train 50,000 artillery units
Lose 100,000 units
Train 25,000 naval units
Train 10,000 air units
Win 50 games
Gain control of 250 rare resources
Get a high score on any skill
Knockout in Sudden Death
Win Territory
Win 25 games
Win Wonder
Win Assassin
Win Peaceful Tech Race
Win on a Big Huge Map
Complete the World Map Campaign
Collect 1,000,000 resources
Collect 5,000 resources from ruins
Win 10 games
Research 4 finals in game
Win Musical Chairs
Capture a city
Send resources to an ally
Finish a multiplayer game