Discovery of arbitrary code execution hacks in vanilla DOOM games lead to the creation of ACE Engine.
You can now expand classic DOS version of DOOM 2 with GZDoom-like levels of additional customization features, that all work just by loading a WAD file like any other.
Check out the completely INSANE demo:
https://youtu.be/h7h7rHDOf7c?si=QsmrP7V4i2J5tO28
@dosnostalgic Wow! Not sure of the utility of this these days with all the source ports we're swimming in that can load deh patches inside wads natively and most would prefer to use, but still, the technical feat of being able to do this is amazing!
@dosnostalgic@mastodon.social@ianmclean Being able to load DeHackEd patches at runtime is probably its least impressive feature though. It is completely bonkers.