A lot of them were unplayable on release or caused OS issues if you were lazy enough not to crack them as you should. 😠
Legally I've been looking into putting xdelta diff's onto github because as far as the DMCA is concerned its legal (until someone with enough money sues or the DMCA changes). So a diff or a patcher for a work where the "technological measure" no longer effectively controls or protects and where the usage of copyrighted works is only a 'part' so no sharing of modified binaries and copyrighted non drm files are allowed. Keep in mind that laws are different per country.
https://github.com/vogonsorg/OfflineGames
Haven't uploaded anything yet since along with researching the legality I've been testing the diff on macos, Linux and windows, organizing my files and testing and changing my backups. (switching from robocopy to ZFS replication).
It would be organized per game with a diff per version of the game. No automatic patching or scanning initially but I'd like to see where just like the old dos patchers you point it at your game or game folders and it does the work with DMCA verbage for CYA for floppy, CD and game store games.
A github seems most appropriate since less chance of it getting shut down and can be easily downloaded and replicated.
The above is why we have no issues with discussion of such on vogons, this is your software (yes I know the arguments) and as such you have the right to use what you own whereas most communities throw the TOS (even when it's wrong) of the dev/publisher/game store in your face and consider the matter verboten.