StarCraft II: Legacy of the Void is an upcoming standalone expansion pack to the military science fiction real-time strategy game StarCraft II: Wings of Liberty, and the third part of the StarCraft II trilogy developed by Blizzard Entertainment. The game is set for release on November 10, 2015.The expansion will include additional units and multiplayer changes from Heart of The Swarm, as well as a continuing campaign focusing on the Protoss species.