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