Blizzard have just announced that the campaign mode for Starcraft II will be separated into three campaign modes, each from the perspective of a different race.

The trilogy will be comprised of the following campaigns:

Terrans - Wings of Liberty
Zerg - Heart of the Swarm
Protoss - Legacy of the Void

No release date has been set for any version of Starcraft II, though there may be announcements yet to come this weekend.

Reaction to the announcement has been mixed, but predominantly negative. Blizzard plan to release each campaign mode as individual retail items, meaning fans have to purchase three separate discs to play through the entire story.

Whether or not the latter two versions will be available as downloadable content, or whether or not they will come at a reduced price, was not specified.

"It's a separate product. look at the next two as expansion packs, but will have the feel of stand alone products," said executive VP of game design Rob Pardo.

Blizzard attribute the decision to separate the campaign modes to a desire to give consumers something no RTS ever has. In light of the amount of content they plan to feature throughout each campaign, alternate options were either cut the game down or delay it indefinitely.

The multiplayer aspect of the game will be fully implemented in the first release however, it turns out multiplayer updates will be implemented via these second and third installments, much like The Frozen Throne or Brood Wars.