Dracomut1990: Not a pressing question, but I am very interested in knowing: Why is Blood not available for download on the Mac? Both Duke Nukem and Shadow Warrior can both be downloaded for the Mac and they have essentially the same engine that Blood does.
Tychoxi: I think it may be because Duke and SW got an official Mac port back in 97, Blood didn't. With some luck GOG will make it work in Mac systems in the near future (GOG has only recently started supporting Mac systems).
This probably raises the question: Has GoG ported any of it's inventory to the Mac, that hasn't already been ported some time in the past? GoG still has to take point on what the IP owner wants (goodbye Fallout)
It wouldn't be much of an technical issue to repackage DOSBox + Blood for the Mac, or even a Linux box. Certainly not enough of an issue to outweigh the potential sales they would get.