StarCraft enhanced on its predecessor Warcraft II, which highlighted two quite equivalent playable factions, by introducing asymmetry among the units and technologies accessible to its a few races (Protoss, Terran, and Zerg). This asymmetry was just like that pioneered inside the lesser-identified 1996 SSI release War Wind. The unit varieties available to Each and every race define its racial id. The Protoss can industry powerful and pricey warriors and machinery, while the Zerg depend on sheer figures and speed to overwhelm their opponents.

The story focuses on the routines of 3 species in a very part of the Milky Way referred to as the Koprulu Sector. Millennia ahead of any with the situations of the games, a species referred to as the Xel'Naga genetically engineer the Protoss 무에타이 and later on the Zerg in makes an attempt to generate pure beings.[eleven][twelve] These experiments backfire plus the Xel'Naga are mainly ruined via the Zerg.[twelve] Generations before the beginning of StarCraft in 2499, the hardline international government of Earth, the United Earth Directorate (UED), commissions a colonization plan as A part of a solution to overpopulation.