Classic...

User Rating: 9.1 | Quake III Arena PC
This game is awesome. The conrtols are quite easy to get the hang of. The graphics are amazing (for the time this game was released). The online play is very fun, big deathmatch and capture the flag matchs are the best part.
The single player is pretty fun too. You can either play skirmish, which is playing against the computer (there are also little annoying things, for example in one capture the flag level , there is a platform that moves from one base to the other, the computer will only hang out there making easy sniping targets). Or the "story mode" which is where you go through stages of a tournament. Actual missions would be nice though. There are also 5 extroardordinary difficulties. Overall it's a great game