Peter Elsner writes "C-Base 128 was written by a friend
of Gunther's, Dan (I think it was Patterson but am not sure)."
"When Dan gave up the C-Base 128 version, a person in California (who I can
only remember as Dark Overlord) and myself took over programming for the
C-Base 128 program.'
"We created dozens of door games and made hundreds of modifications (not to
sell but to give away to anyone who was running C-Base 128), and we fixed
numerous bugs that we found at the same time. Dan gave me the source code
and told me I could do with it whatever I wanted, but Gunther still owned
the rights to the name "C-Base", and he ended up selling the code to the
author of Color 64/128 BBS (also for the Commodore)."