Download Maelstrom Expansion v1.37 R10 (Diplomacy SoaSE).

The tenth release of the Maelstrom Mod Six races in deadly battle ... TEC, Advent, Vasari, Norlamins, Replicators & the Trade Alliance All with unique strengths & weaknesses. The "Standard" series and the "Expansion" series are two separate mods

Credits: Ironclad, Stardock, ICEman, Quiet_Man, Malanthor and many others
http://www.soase-maelstrom.com/