StarCraft enhanced on its predecessor Warcraft II, which highlighted two extremely comparable playable factions, by introducing asymmetry in between the models and systems accessible to its 3 races (Protoss, Terran, and Zerg). This asymmetry was much like that pioneered within the lesser-known 1996 SSI launch War Wind. The device sorts available to Every race define its racial id. The Protoss can discipline effective and costly warriors and machinery, though the Zerg rely on sheer figures and speed to overwhelm their opponents.

The Tale concentrates on the actions of three species in the Component of the Milky Way often called the Koprulu Sector. Millennia prior to any in the functions with the game titles, a species often called the Xel'Naga genetically engineer the Protoss and later the Zerg in attempts to make pure beings.[11][12] These experiments backfire as well as the Xel'Naga are mostly wrecked with the Zerg.[twelve] Hundreds of years ahead of the start of StarCraft in 2499, the hardline Global govt of Earth, the United Earth 헬스케어 Directorate (UED), commissions a colonization method as Element of an answer to overpopulation.