The X-Tended Mod is a large addition to the existing X3:Reunion universe and is the only major mod (as of the 26th May 2010) that has been hosted by the creators of X3:Reunion, Egosoft, on their own servers. (Only 2 mods have been hosted by Egosoft in total.) Many of the ships and ideas from XTM were added to the next game by Egosoft - X3:Terran Conflict. A lot of the XTM team also worked with Egosoft in creating Terran Conflict. This mod massively expands the universe and the game itself, adding over 90 new ships, almost doubling the size of the universe, plus adding many new missions, stations, and things to find.
This mod basically adds so much content it feels like a new game! The ships are balanced well and trips into the Xenon sectors are so much more scary ;) It is a must have mod for X3:Reunion and I HIGHLY recommend it. First thing I done was get the patches, Xtended mod and then the optional bonus pack.
I have spent too much time doing this review... I must go and conquer some sectors :D You will NOT regret trying this mod out. - Geopelia666