Here is the full list of all 22 Townopolis achievements.
Complete the entire campaign.
Earn all the trophies.
Earn all the gold stars.
Earn $100,000,000.
Reach 100 total happiness.
Build a town with 1,000 residents.
Order 300,000 units of material.
Train 100 workers.
Earn 10 trophies.
Buy 30 licenses.
Upgrade 300 buildings.
Demolish 50 buildings.
Win 12 sandbox scenarios.
Build 250 buildings.
Earn 12 silver or gold stars.
Clear 50 plots.
Upgrade 100 buildings.
Build 75 buildings.
Demolish 10 buildings.
Upgrade 25 buildings.
Demolish 2 buildings.
Build 10 buildings.