To play Cliffhanger, simply make sure all related files are
in your DOOM 2 directory and type "Cliff" at the command prompt.

Related files are:

        Clfhnger.wad
        Cliff.bat
        ReadDug.txt
        Intro.exe
        Intro.dug
        Goodbye1.exe

Other available Dugsoft wads:

        The Tenth Level Trilogy (10thlvl.zip) for Doom

Coming soon:

        CPU Hell (CPUHell.zip) for Doom

Watch for more wads from Dugsoft. Also look for a completely original game,
Psi Fighter, (name likely to change) available early '96