A wonderful second installment of Starcraft 2. The Zerg campaign is super fun, with a lot of fun new units and really fun upgrade systems. The way you can mutate each of your units over the course of the campaign makes perfect sense for the Zerg, and adds a lot of fun ways to tweak your forces to get the job done. The expansion also reinvigorated the multiplayer for me, which was fun to watch again after the addition of a bunch of new units in this. It's a best in class expansion. <3