The Maelstrom Mod introduces four new races to the Sins of a Solar Empire Rebellion Universe. They are independent of the original races and have unique strengths and weaknesses. Maelstrom is available for Rebellion, Diplomacy, Entrenchment and Original Sins.
The most detailed mod for Sins as of this date, a complete experience. All races feel and play like different races not just a mishmash or hodgepodge of the original races. Some of the models need additional work.
Great work to have the mod available for all versions of Sins.