Today I discovered a very nice free software project, called PlaneShift.
Yes, it is a computer game, but not the usual one. PlaneShift is a persistent fantasy multiplayer Role Playing Game with state-of-the-art 3D graphics. It is a really huge project for many, many years, and the most important thing about it is its freedom. Everyone can become a PlaneShift player and everyone can develop it!
Currently I am not a computer games player, but I used to be about 10 years ago. I had a great Amiga 500 and I remember many nice titles, including The Secret of Monkey Island, Civilization, Pirates!, Dune II, or Frontier: Elite II. Especially the last title was amazing for me for its extreme large universe to explore (I look forward to seeing Elite IV).
Nowadays I am a software programmer so I don't have time for computer games. Well... I have my own PS2, but the last game I played was FFX more than a year ago...