They were shipped in z-code, but z-code is basically machine code, and indeed, you can patch any game if you want to fiddle with the binary. The source code is human-readable.
Not only we had compilers to z-code for a long time, but in fact first third-party languages for the z-machine were better than Infocom’s own, which was discovered from their leaked code. So I’d guess reversing the bytecode isn’t a problem either for a while now.
They were shipped in z-code, but z-code is basically machine code, and indeed, you can patch any game if you want to fiddle with the binary. The source code is human-readable.
Not only we had compilers to z-code for a long time, but in fact first third-party languages for the z-machine were better than Infocom’s own, which was discovered from their leaked code. So I’d guess reversing the bytecode isn’t a problem either for a while now.