What's your all-time favorite science fiction first-person shooter series?

Doom 14.9%
 
11851
Half-Life 22.73%
 
18074
Metroid Prime 30.04%
 
23894
Quake 3.68%
 
2927
Serious Sam 1.35%
 
1075
Star Wars: Jedi Knight 8.95%
 
7114
Timesplitters 10.17%
 
8090
Unreal 8.18%
 
6505
TOTAL VOTES 79530

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