>>5228067
>32X
A challenge, but it actually did come through, if rather truncated.
>Jaguar
Another challenge, but it was doable. Carmack figured out how to put all of the different processors to use on doing the game logic and rendering (hence why there's no music during gameplay, that's used elsewhere).
Given the Jaguar's bullshit setup of multiple different processors two which fucking hated interacting with each other (thus nicknamed "Tom & Jerry"), this was a small miracle, and you kind of needed person of Carmack's caliber to get something like Doom to run so well on the thing.
Theoretically, one could have gotten around the lack of music, as well as the lack of levels and sprite rotations, by making Doom for the Jaguar CD. The problem is that in practice, the Jaguar CD was a fucking unreliable piece of shit which would regularly suffer problems with connecting to the main console, as well as bad manufacturing tolerances, most commonly, the lid clamps down too tightly on the CD, preventing it from spinning, meaning A), the console can't read the disc, and B), the motor strains against this and wears on itself, possibly stripping gear teeth.
For what the resulting Jaguar Doom is, it's ok, but hardly perfect. Given the failure of the console, there was a time where you could get one with a copy of Doom for quite cheap, so as far as that counts, it was at least some people's Entryway drug to the game.
>3DO
Outsourced to a different company, and one single programmer basically had to rush the bulk of the conversion work, based on the Atari Jaguar port, in the span of 10 weeks, because everyone else was some kind of idiot (at least, according to what said programmer told of the story).
It was The Contractual Obligation Port, and it very much suffered for this, a victim of circumstances.
>Macintosh
Say what you want about Macs, but they did, and do run, the computing power needed to run the game was there.