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