What we said about it:
Arguably, Quake has been the one franchise of id’s titles that constantly pushed the conceptual envelope. It abandoned its initial storyline of fighting the evil “Quake” with a more definitive opponent – the evil Strogg.
Quake 4 delivers an enjoyable single player game. Kane and the battle against the Strogg are handled nicely, and there's enough direction placed in the story to accurately host an expansion pack (which you can probably bet will be on its way next year). Hopefully they'll explore much more of the character twists and the rest of the Rhino Squad. On the other hand, you're much better off firing up a copy of Quake 3 Arena if you want to get your multiplayer on, since Quake 4 really steps backward in the online arena.
Read more: Review (PC)
Quake 4
Activision