Best free games on the net

These are some of the best free games that are available out there (not necessarily in the order of importance, gameplay and popularity)

1:-America's Army: Special Forces.
2:-Hidden and Dangerous Deluex.
3:-Battlecruiser 3000 A.D. & Battlecruiser Millennium
4:-Grand Theft Auto & Grand Theft Auto 2
5:-Hidden & Dangerous Deluxe
6:-The Marathon Trilogy
7:-Return to Castle Wolfenstein: Enemy Territory
8:-Starsiege: Tribes
9:-Ur-Quan Masters
10:-Wild Metal Country
11:-Counter Strike