[TophWells]

If they can, certainly. Assuming the developer still exists, and they still have the source code, some idea of the build environment, and they want their game to still be accessible. And even then:

https://mightyvision.blogspot.com/2017/04/868-hack-update.ht...

> Isn't this just a matter of opening up the project, changing one line and recompiling? Should take five minutes, it's not really a big deal? Yes and no. The 64-bit change itself is small but they change enough other things every few months that recompiling against new versions of the libraries doesn't simply work. You get a few linker errors and have to look up the new names for a couple of functions. Or there's a new element in one of the libraries with the same name as one of my variables so I have to find+replace to change its name. And then you run it and find that it's in portrait mode, squished into half of the screen, so you have to look up what changes they've made to how screen orientation works and change a few more lines. [...] It adds up.

Sure, you can work around it, but from the developer's perspective their game has just been designated obsolete for no reason that Apple couldn't have fixed themselves.