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