1st and 3rd Person Shooters

1. Area 51 - Arcade shooter.
2. F.E.A.R. Combat - Online multiplayer version.
3. D-Day: Normandy - Online multiplayer, standalone of the original WWII mod.
4. Nexuiz - A free open-source fps that runs on Windows, Linux and OSX.
5. True Combat: Elite - Modification based on Wolfenstein: Enemy Territory.
6. Wolfenstein: Enemy Territory - Online multiplayer version.

Miscellaneous

1. Grand Theft Auto - Part one and two.

Online Classic Gaming

1. 1980 Games - Original online video and Arcade games.
2. c64s.com - Get your daily dose of Commodore 64 nostalgia.
3. Game Oldies - Play Sega, Nintendo & Arcade remakes online.
4. gbemul.com - Get your daily dose of Gameboy nostalgia.
5. Neave Games - Online classic remakes.
6. nintendo8.com - Get your daily dose of Nintendo nostalgia.
7. vNES - The virtual Nintendo Entertainment System.

Platform

1. Nifflas' Games - Two very cute 2D platform games.

Racing

1. Trackmania Nations - Beautiful game with crazy tracks.

Retro Originals

1. Railroad Tycoon - The MicroProse classic by Sid Meier.
2. Sim Abondonware - Classic Maxis-made Sim games.

Retro Remakes

1. King's Quest III - A VGA color remake by Infamous Adventures.
2. Retro Remakes - Classic gaming for the next generation.
3. Retrospec - 8 bit remakes and new retro games.
4. Secret Maryo Chronicles - Mario clone with a level editor.
5. The Great Giant Sisters - Giana Sisters clone.

Strategy

1. Command & Conquer - Strategy game by Electronic Arts.

Shoot'em'up

1. CHO_REN_SHA 68K - Arcade old-style.