An awesome game, except for a mediocre storyline
The music is awesome; Introversion Software did a wonderful job matching it to the mood of the game. Graphics are above average for the genre; I personally enjoyed them although you can simply go to a mod site to download other skins for the game--"http://modlink.net". This page, although rarely updated, contains many mods for the game ranging from minor addons such as extra computers to use to a complete makeover of the game.
The storyline, however, is less than admirable; it depicts a company, ARC if I remember correctly, engineering a virus to take over the Internet. Another corporation, Arunmor, is trying to stop them. Eventually, you can choose to follow either the good or evil path; the "evil" path ends the game if you win since the Internet was destroyed, but the "good" path allows you to continue playing. The varied missions throughout the game allow you to supposedly hack anything from company mainframes to whole networks. Unfortunately, the game allows you to ignore the storyline but will then force you to end the game when ARC eventually prevails and destroys the Internet. If you can get past the storyline in the game, you're allowed "free play"; this was my personal favorite part of the game.
My opinion overall of this game was that it was a wonderful game, but only if you could get past the storyline flaws. By cheating, I believe you can bypass the storyline entirely, but that entails using an odd username that most people wouldn't choose. In summary, Uplink is a good game with some less-than good aspects, but still worthwhile to pick up.