Probably a price mistake because Endless Space 2 is still in early access. Normal price is $29.99 standard edition $37.49 for deluxe edition.
The sequel to the two-time Unity-award winning Endless Space! Endless Space 2 is turn-based, 4X space-strategy that will put you in the fascinating role of a leader guiding a civilization in making its first steps into the cold depths of interstellar space. Your Vision. Their Future.