This pack is incredibly decent. Not bad and not good. The pack adds new scientific situations called Rifts that are only accessible in the late-game. These rifts are basically archeological sites on steroids, and give your empire some powerful boosts in the form of a new resource and scientific research.

It's not a great addition, but is relatively good and improves the already scarce late game. The only bad thing is the price that definitely doesn't make sense for the amount of content this pack provides.