… Ya know, I think Doom may have actually been a parallel-universe/built-by-aliens type of fluke: It seriously accelerated gaming and the social perception of gaming, and in turn pushed computer technology adoption towards 3D cards (and everything else required to support them) much faster than it may have happened without Doom.
So I think if certain "killer apps" weren't released when they did, then maybe people might have been fine with tech chugging along at a more relaxed pace..
That gave me a nightmare vision of Doom clones where you pay money to appear as a different sprite and it's inflicted with last man standing type game modes and all kinds of other bad things modern games do.