Here is the full list of all 22 Romopolis achievements.
Earn all the trophies.
Win 12 sandbox scenarios.
Reach 25 total happiness.
Build a city with 2,000 residents.
Earn 2,000,000 Dn.
Earn all the medals.
Complete the entire campaign.
Upgrade 300 buildings.
Earn 12 trophies.
Build 250 buildings.
Demolish 50 buildings.
Order 25,000 units of wood and stone.
Earn 12 medals.
Buy 20 concessions.
Upgrade 100 buildings.
Clear 50 plots.
Train 120 workers.
Build 75 buildings.
Demolish 10 buildings.
Upgrade 25 buildings.
Demolish 2 buildings.
Build 10 buildings.