This is The Sacred Pyramid, a game written by Vince M. Hudd and supplied as an example with his Trellis interpreter.  Just to prove I can, I have converted it to my own format, with as much of the original text and idiosyncrasies replicated as closely as possible as I can.  The exception to this is the help system, which works completely differently in Trellis than it does here, so I haven't included it.

Of course, the two systems are not entirely compatible and this program should not be taken as a shining example of how to use the interpreter.  In particular, in an attempt to get around the 'darkness' system and the fact that Trellis doesn't support them, all the name fields in the 'Rooms' file have been left blank.  Please don't do this!

By the way, I have tested both games side by side and this version can be completed by the exact same command sequence as the original can.  (But you can abbreviate directions, which you couldn't in Trellis!)