Here is the full list of all 22 Megapolis achievements.
Earn all the gold stars.
Earn all the trophies.
Complete the entire campaign.
Earn 12 gold stars.
Earn 12 trophies.
Earn $100,000,000.
Build a zone with 5,000 residents.
Upgrade 300 buildings.
Order 150,000 units of material.
Win 12 sandbox scenarios.
Build 250 buildings.
Buy 20 licenses.
Demolish 100 buildings.
Reach 25 total happiness.
Upgrade 100 buildings.
Clear 75 plots.
Train 100 workers.
Upgrade 25 buildings.
Demolish 25 buildings.
Build 75 buildings.
Demolish 5 buildings.
Build 10 buildings.