StarCraft (PC, 1998)
guessed by TruckOSaurus
Real-time strategy (RTS) games owe a lot to StarCraft, a pioneering game in the genre. By introducing three unique, dramatically-different, and balanced races into the equation instead of two more-or-less equal sides with similar units, Blizzard changed RTS games forever. Base-building, unit growth, and unit limits were dictated by each race -- Terran, Zerg, and Protoss -- so the mechanics of the game shifted each time a player chose his or her side. StarCraft was also one of the first RTS games to feature a compelling story that was woven into the gameplay. Apart from its stellar single-player campaign, StarCraft features several multiplayer modes available through Blizzard's Battle.net internet service.