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