(NOTE: Requires a registered version of Doom or Doom II to work, cannot play on own!)It's an adventure beyond belief!  Includes 150 new levels for DOOM and DOOM II including new game layouts, maps and a DOOM interface that are perfect for first time DOOM players as well as seasoned veterans.  In addition, included are utilities, sounds, music and graphic add-ons - for the best challenge yet!  You will be amazed hour after hour.  All are fully play-tested - challenging even the most battle-hardened among the "DOOM"ed.