About
MBF-SNM is a modification of the Marine's Best Friend (MBF) Doom source port, adjusted to support the fan-made Sigil and Sigil II episodes as proper fifth and sixth episodes. The author sourced the code from a Vogons forum post and ported over relevant changes from the libretro-prboom project, targeting DOS (buildable via DOSBox with an old djgpp toolchain and Allegro 3.0).
How it differs from the original
Compared to standard MBF, this build adds full support for the Sigil and Sigil II episodes as proper fifth and sixth episodes and restores sound-card settings being read from allegro.cfg; SIGIL_SHREDS.WAD specifically is not supported since MP3 playback isn't available.
Getting started
You need The Ultimate Doom WAD (named DOOM.WAD or DOOMU.WAD) to run it. Load Sigil.wad to access episode 5, and load both Sigil.wad and Sigil2.wad together to access episode 6.
Known limitations
- audio: SIGIL_SHREDS.WAD is not supported due to no MP3 playback capability.
Media
Additional notes
- Provenance
- The base source code was obtained from a Vogons forum thread, with the Sigil-support changes ported over from libretro-prboom pull requests 88-90 and 97.