Zerg Tech Tree
The Zerg are subject to some pretty substantial changes in Starcraft 2, and while not all of them might stick around for the final release there's a lot that has been altered:
Spawning Pool: Now allows the production of a special Queen unit from the Hatchery, as well as the usual Zerglings. Also provides Zergling upgrades.
Spine Crawler: The replacement for the Sunken Colony is not a stationary building, but rather a movable defence structure. Can only attack while mounted in Creep, otherwise defenceless. Attacks ground units.
Spore Crawler: Similar to the Spore Colony, this is also a mobile defence structure that mounts onto the Creep much like the Spine Crawler. Only attacks air units.
Baneling Nest: Allows the production of Banelings from already built Zerglings.
Roach Warren: Allows the production of Roaches from the Hatchery, and provides class-specific upgrades.
Infestation Pit: Allows production of Infestors, and upgrades.
Spire: Allows production of both Mutalisks and Corruptors.
Nydus Network: Any unit can travel through the network to any exit, including allies of the Zerg player.
Click on for the Protoss tree, or back for Terran.
Issue: 111 | April, 2010