Some recently added or updated stuff of interest from underdogs, worth a look if you need some entertainment and your machine is a bit past Doom 3.
CD Versions of UFO and TFTD, 3 and 5 in the Yak all-time strategy charts
http://www.the-underdogs.org/game.php?id=4966
http://www.the-underdogs.org/game.php?id=4967
MDK
http://www.the-underdogs.org/game.php?id=3157
Wipeout XL
http://www.the-underdogs.org/game.php?name=Wipeout+XL
Bitmap Brothers games, if you don't have the ST or Amiga versions
http://www.the-underdogs.org/game.php?id=1026
http://www.the-underdogs.org/game.php?name=Magic+Pockets
http://www.the-underdogs.org/game.php?name=gods
http://www.the-underdogs.org/game.php?id=190
I doubt i've the patience to finish it again, Another World
http://www.the-underdogs.org/game.php?name=Out+of+This+World
Freeware desktop version of Space Hulk, good tea break game
http://www.the-underdogs.org/game.php?id=4949