Here is the full list of all 22 Romopolis achievements.
Clear 50 plots.
Build 10 buildings.
Build 75 buildings.
Upgrade 25 buildings.
Upgrade 100 buildings.
Demolish 2 buildings.
Demolish 10 buildings.
Build 250 buildings.
Upgrade 300 buildings.
Demolish 50 buildings.
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.