Borderlands

Borderlands was the first expansion for Twilight Imperium. It was released late 1997.
The content it adds to the base game is listed below 
== Additions to Existing Components ==
* 2 New Races (The Yssaril Tribes and the Mentak Coalition) 
* 16 New Action Cards
* 16 New Political Cards 
== New Components ==
All new components in the expansion are Optional Variants that may be added as the player sees fit 
* Advanced Construction 
* Assassins 
* Capital Ships 
* Capital Planets 
* Mines 
* Declarations of War and Peace