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