Back in the day, I used to play Doom using DoomAttack on my 030/50, as it seemed to run a lot smoother than any of the other ports. I ran it fine in full screen 1x2 pixels, and it still looked nice in 1x1, just ran slightly slower. Overall, it seemed to run smoother than other First Person Shooters, like Breathless, at the same resolution and screen size.
