Blizzard announced today that the first expansion for Starcraft II has a release date of March 12. 2013. Heart of the Swarm is a new campaign that is focused on the story of Sarah Kerrigan, Queen of Blades, as she takes the zerg Swarm and plots her revenge against the dictator of the Koprulu sector, Arcturus Mengsk. There will also be new multiplayer units and features available with the launch.
StarCraft II Heart of the Swarm will release for Windows and Mac at the same time for $39.99. Supported Windows OS are XP, Vista, 7 and 8. The expansion will also be available for purchase through the