I think there was a silly putty one on CU amiga
Rick Dangerouse II one (think it may have been amiga format)
Turns out it was the one http://amr.abime.net/issue_311_coverdisks
for Rick Dangerouse II.
Another edit later and its Putty http://amr.abime.net/issue_597_coverdisks
, pretty sure it was exclusive as when you interacted with some object a copy of CU amiga would drop down.