Reverse-engineering notes on Nitemare-3D: A House of Horrors (David P. Gray, 1994) - the IMG/MAP/SND/UIF formats, the XMS slot cache, and the artist's placeholder that shipped as a wall texture.
documentation reverse-engineering raycaster retrocomputing shareware ms-dos 1994 file-formats dos-games game-preservation nitemare3d david-gray hugos-house-of-horrors diet-unpacker
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Updated
Aug 27, 2026 - Python