Is it possible to use the eco tech tree as a tycoon player, and vice versa? If it is possible, how do you unlock the respective tech trees?


If you're playing an "endless" game, when you get your citizens to tier 5 (Executives), you'll be able to purchase the rights to construct the opposite faction's starting buildings. (The rights for Tech buildings are unlocked at tier 3 for both)

In most of the scripted missions (the campaign, etc) you are only given access to the opposing faction's buildings if/when it is scripted.

  • That being said, in many missions you WILL eventually be able to get opposing faction citizens and build their stuff...just gotta wait.
    – Bob
    Jul 23 '13 at 2:39

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