RIFT: Storm Legion is an add-on for RIFT. The story is about the Infinity Gate which can be used to travel between planes. Now Crucia and Regulos, the only remaining dragons, try to reactivate it to serve their plans. The Storm Legion is Crucia's cult.
It mostly adds more of the same: two continents, more "story" quests than in the main game, seven dungeons, three raids, an increased level cap of 60 and four new classes. The two main innovations are the hunting quests (killing x enemies of the same type) which automatically activate when killing an enemy in the assigned zone and dimensions (housing). While the house itself is fixed, the player can purchase a variety of decorative items which can be freely placed.