StarCraft, released for Windows on March 31, 1998, is the first video game in the StarCraft series. A science fiction real-time strategy game, StarCraft is set in a distant sector of the Milky Way galaxy. A Mac OS version of the game was released by Blizzard Entertainment in March 1999. A Nintendo 64 port including StarCraft, Brood War and a new secret mission "Resurrection IV" was released in the United States on June 13, 2000. The game's story revolves around the appearance of two alien races in Terran space, and each race's attempts to survive and adapt over the others. The player assumes three roles through the course of the three campaigns: a Confederate colonial governor who becomes a revolutionary commander, a Zerg cerebrate pushing forward the species' doctrine of assimilation, and a Protoss fleet executor tasked with defending the Protoss from the Zerg. StarCraft soon gained critical acclaim, winning numerous awards, including being labelled "the best real-time strategy game ever made" and being ranked the seventh best game of all time by IGN in both 2003 and 2005,and the eleventh best game in 2007.