MTFIRE09.ZIP contains the version 0.9 of the 'Mountain of Fire' PWAD.
This WAD is the sequel to 'Dead Base' and the two wads should be played
in sequence for optimum performance.....Anyway, it is possible to
play the level even if you don't have Dead Base.
The setting is inside a volcano, there aren't very large areas with
lots of stuff, so it should run smoothly on most computers.