Quest Underwater Road
Quest New Business
Quest Critical Business Processes
Quest Foreign Business
Quest Credit History
Quest High Level
Underwater RoadNew BusinessCritical Business ProcessesForeign BusinessCredit HistoryHigh Level


The Underwater Road quest unlocks once the following conditions have been met:

  • Level 15


You are about to carry out a complex but very interesting project – an underwater tunnel. It will connect Megapolis to an island that can become your city’s new business center!
Underwater Tunnel Complete construction of the Underwater Tunnel
Costs: 400,000 Coin sm or 3 Megabucks sm, 15 Power sm and 5 Water sm to start
Costs: 375 Assets or 375 Megabucks sm, 115 Power sm and 5 Water sm to complete
Gives: 8,750 Experience sm and 200,000 Population sm increase total


Excellent! Now you own a Business Island!
  • XP Reward: 300 Experience sm
  • Coin Reward: 10,000 Coin sm


  • Social Quantum's internal name for this quest is "Дорога под водой" which translates to "Road Under Water".
  • Social Quantum's ID for this quest is 70138.