If Dreamcast games can be ported to the Gamecube, I don't see why not it can go backwards.
No, going backward shouldn't be possible without many efforts since Dreamcast's hardware is lesser than Gamecube.
Gamecube's boasting 162 MHz compared to Dreamcast's 100 MHz.
Its T&L GPU has a lot faster geometry performance than Dreamcast.
True, but I would want my customers to see my full wares on one convenient page than them having to search for seperate pages.
Then they should make a page first on Steam since they don't have it.
The one who put their company name on Steam was their publisher,
Forever Entertainment, otherwise they wouldn't get known on Steam.