The levels in these subdirectories are all made specifically
for the game DOOM and won't run under DOOM2, Heretic, Hexen
or Strife without modifications. Some of these files also
contain new sounds and graphics, and some are in fact large
compilations that replace all the episodes of DOOM and Ultimate
They are split up into alphabetical groups. The 'deathmatch'
directory contains deathmatch-only levels and is itself split
The 'megawads' directory contains files that contain a large
scale replacement of 15 or more levels, but which don't
qualify for the themes/ directory. DM-only megawads are in
the 'deathmatch/megawads' directory.
To create your own addon levels, try the editors in the
Questions? Contact idgmaint AT gamers.org .