You can buy old games on gog but I am not sure they have the license to sell them so I do not see how it would provide any more legal protection than downloading them for free from a website without viruses or malware
But you can play a lot of them in a browser on websites without doenloading them at all, and I am wondering if that is safer legally
@Stahesh
Try these
Kyrandia 1, 2 and 3 ( if the first one is too hard do not let it discourage you from trying the other ones which are easier, although the plot for the third one is based on the first one )
Lands of Lore the Throne of Chaos
Dune 2 the battle for Arakis
Daggerfall
Ancient Domains of Mystery
Hyper Rogue
Sonic the hedgehog
The first Dark Sun in the trilogy
Commander Keen
Wolfenstein 3D
Doom 2
Obsidian ( the one that had such a high budget the corporation went broke )