StarCraft enhanced upon its predecessor Warcraft II, which featured two extremely comparable playable factions, by introducing asymmetry 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 varieties available to each race determine 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 activities of three species within a Section of the Milky Way often known as the Koprulu Sector. Millennia before any from the activities on the online games, a species often called the Xel'Naga genetically engineer the Protoss and afterwards 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 격투기 StarCraft in 2499, the hardline Global governing administration of Earth, the United Earth Directorate (UED), commissions a colonization application as Element of an answer to overpopulation.