must have been some tape game for the C64...damn I am old.
It was always some kind of "what happens if I do that" or "why can't I just copy it...how could someone avoid that?"
Testing C64 first tapes then Floppy, Amiga afterwards (500 then 1200) PC at last and Consoles in the end.
Now I am working and my free-time vs. earned cash ratio changed, so I can buy all the games I want to play...and do so, working as software developer myself ;-)
Sadly, I have more games, I could play in the few free time :-( (and still there are so many good games around, I don't have)