Quest Subway Development
Quest Profitable Route
Quest Masterpiece of Engineering
Subway DevelopmentProfitable RouteMasterpiece of Engineering

Progressive Subway is a quest chain in which the player has unlimited hours to build and upgrade a total of 2 new fixed structures with assets leading to exclusive rewards. It was released as part of an update on February 18, 2016.[1]

"The Subway is an ideal mode of transport for a big city – it’s fast, comfortable and there are no traffic jams! Don’t forget to keep upgrading it to keep up with technological developments!"
"The citizens ask the mayor to: perform modernization"
"Develop the Subway in Megapolis! Build new Overground Subway Stations, upgrade trains and complete profitable contracts!"



This timed quest requires 215 Megabucks sm (for assets, if purchased) and 80,000 Coin sm (for contracts, diagrams, buildings and foundation purchases) in total.

Stage 1 - Subway Development

Quest Subway Development
"Build the first Overground Subway Station in Megapolis. It will give you access to profitable new transportation contracts!"

Subway Train L5 You must build at least one Portland Train
Overground Subway Station L1 Build an Overground Subway Station
Costs: 80,000 Coin sm or 3 Megabucks sm
05 x Clay Bricks Asset Clay Bricks
05 x Hydro Insulation Asset Hydro Insulation
05 x Ticket Booths Asset Ticket Booths
Gives: 900 Experience sm and 13,000 Population Limits upon completion
Contract Short-Distance Route (VIII) Accept the Short-Distance Route contract


Good job! Keep developing the Subway in Megapolis – it’s a profitable business!
  • 500 Experience sm
  • 15,000 Coin sm

Stage 2 - Profitable Route

Quest Profitable Route
"Upgrade the Overground Subway Stations and subway trains so that transportation contracts become even more profitable!"

Subway Train L6 You must build at least one Amtrak Train
Overground Subway Station L2 Upgrade the Overground Subway Station to Level 2
05 x Banknote Detector Asset Banknote Detector
05 x Crushed Granite Asset Crushed Granite
05 x Gypsum Fibreboard Asset Gypsum Fibreboard
05 x Liquid Nails Asset Liquid Nails
Gives: 900 Experience sm and 22,500 Population Limits upon completion
Contract Long-Distance Route (VIII) Accept the Long-Distance Route contract


New routes are just what Megapolis needs! Good work, Mayor!
  • 700 Experience sm
  • 20,000 Coin sm

Stage 3 - Masterpiece of Engineering

Quest Masterpiece of Engineering
"The Houston Train is a masterpiece of engineering. Build it in your Megapolis! Don’t forget to upgrade the Overground Subway Station and send the train along a special route."

Subway Train L7 You must build at least one Houston Train
Overground Subway Station L3 Upgrade the Overground Subway Station to Level 3
08 x Drywall Asset Drywall
15 x Safety Barriers Asset Safety Barriers
07 x Sound Insulation Asset Sound Insulation
Gives: 1,200 Experience sm and 34,000 Population Limits upon completion
Contract Special Route (VIII) Accept the Special Route contract


Brilliant! Now the Subway meets all the needs of your city. Want to tell your friends?
  • 1,000 Experience sm
  • 30,000 Coin sm


  • Social Quantum's internal name for this quest is "Прогрессивный метрополитен" which translates to "Progressive underground".
  • Social Quantum's ID for this quest is 10076097.


  1. SQ Forum: Update 02.18.2016 #1