It used to be that sources for games were required - else you couldn't run them! :) I cut my teeth on cracking stuff in the 8-bit era by writing an assembly-la

It used to be that sources for games were required - else you couldn't run them! :) I cut my teeth on cracking stuff in the 8-bit era by writing an assembly-language "OLD" command for my platform back then (Oric-1/Atmos) that would undo the work done by the "NEW" command - i.e. replace a sentinel byte - so that I could get full sources for games that 'protected' themselves by doing a "NEW" command whenever CTRL-C was pressed. So many wonderful discoveries came to me that way ..