https://en.infinisys.co.jp/product/afterdarkclassicset/index... – Given that Infinisys still sells After Dark (M1 ready, too!), I doubt they have approved those Archive versions.

This stuff makes me nervous about the Internet Archive. For instance, the hundreds of playable video games, all of which are also downloadable: https://archive.org/details/miscconsoles

I don't know how someone like Nintendo hasn't sued their pants off.