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Back in the days I remember the manual (or help file or something) for some submarine simulator game containing an "emergency key" that brought up a spreadsheet

Back in the days I remember the manual (or help file or something) for some submarine simulator game containing an "emergency key" that brought up a spreadsheet screenshot. Can't remember the name though, but it was on a Mac in the 90ies sometime so before Mac OS X.

Clepsydra 5y ago
It was quite common for pc games (like Sierra's adventure games) to have a boss key in the 80s: https://en.wikipedia.org/wiki/Boss_key https://en.wikipedia.org/wiki/Boss_key