Most Popular in Sci-Fi from Download.com Copyright 1997-2005 CNET Networks, Inc. http://www.download.com/ en-us 24 http://www.download.com/Wolfteam-International/3000-7453_4-10857641.html?tag=pop.feed&subj=Wolfteam-International&part=rss Play a first-person shooter with humans and wolves mutants. (39,546 downloads) 1 27 886132 http://www.download.com/Wolfteam-Spanish/3000-7453_4-10855869.html?tag=pop.feed&subj=Wolfteam-Spanish&part=rss Play a first-person shooter with humans and wolves mutants. (13,420 downloads) 2 2 34870 http://www.download.com/Halo-Combat-Evolved-Custom-Edition/3000-7453_4-10292206.html?tag=pop.feed&subj=Halo-Combat-Evolved-Custom-Edition&part=rss Open up a world of new multiplayer features with Halo Custom Edition. (6,953 downloads) 3 211 842472 http://www.download.com/Alien-Arena-2008/3000-7453_4-10850004.html?tag=pop.feed&subj=Alien-Arena-2008&part=rss Blast enemies online in a multiplayer online deathmatch game. (4,254 downloads) 4 137 628549 http://www.download.com/Halo-Combat-Evolved/3000-7453_4-10235610.html?tag=pop.feed&subj=Halo-Combat-Evolved&part=rss Fight for humanity against an alien onslaught. (3,989 downloads) 5 236 2586306 http://www.download.com/Half-Life-2-Garry-s-mod/3000-7453_4-10467864.html?tag=pop.feed&subj=Half-Life-2-Garry-s-mod&part=rss Put characters in awkward poses, create your own wheeled vehicles, and do much more with this mod. (2,502 downloads) 6 133 170123 http://www.download.com/Unreal-Tournament-2004-demo/3000-7453_4-10322225.html?tag=pop.feed&subj=Unreal-Tournament-2004-demo&part=rss Get your frag on in the latest UT2004 demo. (2,312 downloads) 7 220 1072441 http://www.download.com/Doom-3-demo/3000-7453_4-10319941.html?tag=pop.feed&subj=Doom-3-demo&part=rss Journey to Mars and fight hellish creatures in this single-player demo of Id's popular shooter. (1,466 downloads) 12 195 700058 http://www.download.com/Battlefield-2142-multiplayer-demo/3000-7453_4-10591376.html?tag=pop.feed&subj=Battlefield-2142-multiplayer-demo&part=rss Play online with up to 47 other players in two different modes. (1,436 downloads) 10 89 423182 http://www.download.com/Quake-4-demo/3000-7453_4-10467291.html?tag=pop.feed&subj=Quake-4-demo&part=rss Fight with an army of elite soldiers in a battle against an invading alien race. (1,399 downloads) 8 133 325359