Unique tech from ruins

[Arkcon]

bbq said:
I read somewhere that you can sometimes get "unique technology" from ruins. What exactly are these unique techs? Is there a list somewhere? Are they technology that you can not research regardless of how you configure your race? Thanks.

Oh, I'm a little late here, but I'd like to direct you here {clicky}

Use the links on the page and the backlinks until you're satiated.