Full list of all 30 Imperia Online achievements worth 400 gamerscore. It takes around 40-50 hours to unlock all of the achievements in the base game.
The base game contains 20 achievements worth 200 Gamerscore, and there is 1 DLC pack containing 10 achievements worth 200 Gamerscore.
Reach 100 000 net points
Reach 50 000 net points
Reach 10 000 net points
Reach 18 000 population in the entire empire
Hire and mobilize 50 spies
Research Range Attack 3
Get 2 rewards from the casket in Temple
Research Espionage 3
Research Banking 1
Build University 3
Have 8 great people in your empire
Enter into a dynastic marriage
Complete 10 quests
Send from Caravan Station at least 5000 gold, all at once, to an ally
Build level 1 of Town square
Build 2 Archery Barracks in a holding
Make an alliance or join one
Complete 5 quests
Write a message to a player
Research Medicine 1
Found a trading post
Research Banking 5 and take a deposit with small interest
Build Fortress 5
Take control over 2 provinces
Reach general’s level 10
Reach governor’s level 10
Reach Honor 20
Hire 250 Supply wagons
Sell 1000 wood
Plunder 20000 resource in attacks on independent cities