The idea of this topic is that each person will list a good game, and write a quick summary of what makes it so good. Each person should list only one game, and nobody repeat a game that's been posted before.
To start off, the obvious choice... undoubtedly one of the greatest games of all time: Zelda 64.
Game: Legend of Zelda: Ocarina of Time
System: Nintendo 64/GameCube
Release: 1998
Ocarina of Time was a simply stunning game. Not only was it revolutionary in design, but it was simply very fun and epic. Some of it's innovations include z-targeting, auto-jumping, horseback riding, and a huge, interconnected, fully 3D world. The designs of all of the dungeons are incredible, they are a joy to go through even after beating them before. The game has great pacing, a catchy soundtrack, and an intrigueing storyline. Few games have left such an impression on me, with so many memorable moments - the Sheik cut-scenes, the Forest Temple, little Link drawing his sword against Ganondorf in that great cut-scene, the battle with Ganon... in 2003, some games may be better than OoT. Few, however, will ever be as original.