You do realise this has nothing to do with the quality of, or available exploits for, the games you're talking about, right?So good, you can still run those games via emulation from GOG
Many games can be emulated. Many, many games. I can run Tomb Raider (it uses DOSBox, I think), via Steam. Do you think Tomb Raider doesn't have any bugs? Any exploits? Old games are famous for them