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