Doom is playable (albeit by reducing the viewport to a postage stamp) on a 386; I'd be curious how your patch works on the 386 considering how much worse the graphics performance is on it
In the Doom-era game Rise of the Triad, if you shrink the viewport all the way down to postage stamp size, it displays "Buy a 486!" underneath.
In the Doom-era game Rise of the Triad, if you shrink the viewport all the way down to postage stamp size, it displays "Buy a 486!" underneath.