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