The civilization advances: era=none?

Iron Beagle

Designated Marksman
Joined
Dec 17, 2004
Messages
411
Location
Walter Reed army medical center
I notice in the editor that you have the option of giving a technology an era of "None." Does this mean it can never be researched, or what? I was thinking of using this feature to somehow create a civilization-specific technology tree, or civilization specific wonders and governments. Is this possible? Or will it all go horribly wrong?
 
Cannot be researched, but, you can make a prerequisite of a "none" tech in the normal tech tree and those techs can only be researched by one civ.
 
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