Veteran agent Sam Fisher is back. But he's never faced an enemy like this before. To stop a devastating attack, he must infiltrate a vicious terrorist group and destroy it from within. For the first time ever, experience the relentless tension and gut-wrenching dilemmas of life as a double agent. As you infiltrate a terrorist organization in its American headquarters, you must carefully weigh the consequences of your actions. Kill too many criminals and you'll blow your cover. Hesitate too long and millions will die. Do whatever it takes to complete your mission, but get out alive.

Dirt Track Racing 2 is a racing game for the PC from 2002

Yohoho! Puzzle Pirates is an addicting 2D MMOPG (MMO Puzzle Game) from Three Rings Designs. The game offers both free game play, and pay options. In addition, it offers International Seas (Servers) and is available for Windows, Mac, and Linux. Finally, the game offers full-screen and window gameplay.

Gothic 3 is a fantasy-themed role-playing game for Windows from the German game developer Piranha Bytes. It is the sequel to Gothic II. Although widely available in English, the native release of the game is German.

Cube is an abstract sci-fi FPS game for the PC from 2002

Bang! Howdy is a 3D online strategy game, in a steam-powered wild west world, from Three Rings Designs. It is available for Windows, Mac, and Linux; and offers full-screen and window gameplay.

Second Life is an online virtual world developed by Linden Lab which was launched on June 23, 2003. A number of free client programs called Viewers enable Second Life users, called Residents, to interact with each other through avatars. Residents can explore the world (known as the grid), meet other residents, socialize, participate in individual and group activities, and create and trade virtual property and services with one another. Second Life is intended for people aged 13 and over, and as of 2011 has more than 20 million registered user accounts.

Vanguard: SOH is the MMORPG from Sigil Online. Unfortunately it is no longer online.

Half-Life 2 is an FPS from Valve Software, and was one of the most highly anticipated sequels of all time. You return as Gordon Freeman, the strong and silent-type physicist, and you must do battle with an alien race of enslavers to liberate the surviving remainder of humanity on earth.

Hero Online is a completely free MMORPG. Free to play, and free to download