Descent
http://filetrip.net/f1320-DScent-alpha-4-2.html

Doom
http://filetrip.net/f8034-DS-Doom-1-1-2a.html

Duke3D
http://filetrip.net/file.php?id=11919

Hexen
http://filetrip.net/f11269-dualHexen-2009-12-17.html

Quake
http://filetrip.net/f2189-QuakeDS-%28With-PAK-File%29.html

Quake2
http://filetrip.net/file.php?id=2189

ROTT
http://filetrip.net/file.php?id=1219

Heretic(slot2_NDS)
http://filetrip.net/f1615-DS-Heretic-0-3.html

Wolfenstein3D
http://filetrip.net/f776-Wolfenstein-3D--Alpha-release.html    