Oh man, I remember finding the client on a CD around '97. I had no internet, but I roamed those corridors alone for hours... Those were the days.

I thought you meant the 1987-ish mac game called Continuum.

http://www.math.harvard.edu/~knill/various/continuum/index.h...

http://www.ski-epic.com/continuum_downloads/index.html

I spent hours flying round in that thing, one of the most perfect online competitive experiences I've had in gaming so far.