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