For any Linux users out there I have made some Lutris installers for the last couple of versions of S3D2d. Lutris is a Linux game client that aims to make Windows and other games easy to install. The installers can be found at https://lutris.net/games/sonic-3d-in-2d/. The installers haven't been blessed by the Lutris devs yet, but seem to work well on my laptop with Intel graphics. Hope it is okay that I post this here. Thanks for the hard work Sotaknuck!