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