These changes make rushing tactics-a factor that gained some criticism in the original StarCraft-less practical. Brood War's gameplay remains fundamentally unchanged from that of StarCraft, although it made small alterations to unit costs and some abilities. The game revolves around players collecting resources to construct a base, upgrade their militaries, and ultimately conquer opponents.
StarCraft focuses around three distinct interstellar species: the psionic Protoss, the adaptable Terrans, and the insectoid Zerg.