At that point just use any of the DOSBox variants. DOSBox Pure made for libretro is the best imo (as far as gaming is your concern) https://github.com/schellingb/dosbox-pure
Monkey Island was just an example. OFC I know ScummVM (now it supports even some Macromedia Director based software). But lots of legacy software for DOS/Win 3.1 (these infamous "Multimedia CD's) could be preserved thanks to that.