What you have is one of 147 entries from the DECUS
RSTS-11 library. They
are already available on-the-web through the collections at
http://pdp-11.trailing-edge.com/
* RSTS-11-13 Games, Puzzles and Recreation--1,
Version: August 1973
* RSTS-11-76 CYCLES, Version: June 1975
Some of which including the two above are available at:
ftp://zane.brouhaha.com/pub/vms/
after having been converted to VMS. In most cases I've got executables that
will work on VAX/VMS V5.5 and OpenVMS V7.2/Alpha. In all cases there is the
updated BASIC source so you can compile it yourself if those won't work.
There is also some PDP10 stuff I've converted from the stuff on Tim's
site in the same directory.
Zane