John Romero’s Sigil in DOS on a 486 with a Roland SC-55

This is John Romero’s Sigil running in DOS on a 486 with a Roland SC-55 for MIDI sound. Sigil available here: For those who don’t have context, Sigil is a new mod for the original 1993 Doom to add a 5th episode to the game by one of the original developers. This isn’t a how-to video, but all you really need to know is Sigil causes a Visplane overflow in original versions of Doom. Boom fixes this problem, works in DOS, and supports a Sound Blaster and MPU-401 output: https