i've got a question which might sound very stupid, so please don't beat me if it is

i played beneath a steel sky using scummvm several times, but now i need to run it on original DOS. So i downloaded an "Original Floppy Version", or something named like this, but the readme says that ScummVM is needed to run it. Isn't it possible to run this Version on DOS, too?
best regards, simon (not a sorcerer)