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Hydrothermal is a city building game where you create a space colony and ward off alien invaders. Control every aspect of your colony's layout, including zoning, building placement, and terrain features, all with the ability to conquer more land for expansion. Adjust the city details by balancing the budget, passing/repealing laws, and allocating extra resources into six areas using the balance of powers screen. Don't forget to build and manage an army though, aliens attack from time to time! Hydrothermal's addicting gameplay and a classic 2D with over 50 unique buildings, Hydrothermal will keep you entertained for countless more...

What's New

Version 1.21:
  • Native compatibility with OS X 10.10 Yosemite
  • Fixed minimum OS X version (10.7 or later)
  • Limit window aspect ratios
  • Rating reminders for each version


  • OS X 10.7 or later

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2 1


Current Version (1.x)


Downloads 6,713
Version Downloads 85
Type Games / Simulation
License Commercial
Date 21 Nov 2014
Platform Intel 64 / OS X
Price $4.99
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