This particular mod is the combat arena, which is available for Knights of the Old Republic II: The Sith Lords.
If you're not familiar with the Combat Arena, I'll give you a quick crash course in it. It's a module that you can stage fights on your own terms in a combat area that is based off of the one in Visquis' hideout, the Jekk Jekk Tarr Tunnel area when playing Nar Shaddaa.
The TSL Patcher will install this mod. Make sure you read the instructions on how to use this mod. Enjoy the Combat Arena!
