StarCraft improved upon its predecessor Warcraft II, which featured two very similar playable factions, by introducing asymmetry concerning the models and systems available to its three races (Protoss, Terran, and Zerg). This asymmetry was similar to that pioneered in the lesser-recognised 1996 SSI launch War Wind. The device varieties available to each race determine its racial id. The Protoss can discipline effective and expensive warriors and equipment, when the Zerg rely on sheer numbers and velocity to overwhelm their opponents.

The story focuses on the pursuits of a few species inside of a part of the Milky Way called the Koprulu Sector. Millennia ahead of any with the situations of the games, a species called the Xel'Naga genetically engineer the Protoss and later on 킥복싱 the Zerg in makes an attempt to generate pure beings.[eleven][twelve] These experiments backfire as well as Xel'Naga are mainly ruined via the Zerg.[twelve] Centuries before the beginning of StarCraft in 2499, the hardline international authorities of Earth, the United Earth Directorate (UED), commissions a colonization software as Section of an answer to overpopulation.