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