Ah... Nice to see so many people pick Starcraft:
Well here's my top 5:
5) Zelda: Twilight princess / Nintendo / 2006 / Wii, NGC.
4) Super mario 64 / Nintendo / 1996 / N64.
3) Zelda: A link to the past / Nintendo / 1993 / SNES.
2) Zelda: Ocarina of time / Nintendo / 1998 / N64.
1) Starcraft (+ Broodwar expansion) / Blizzard / 1997 / PC.
THE NETHERLANDS