Case study

Spartan: recompiling Halo 3 Mythic multiplayer for Windows

Spartan, formerly OpenH3M, statically recompiles the Halo 3 Mythic multiplayer disc from Halo 3: ODST to Windows x64 with ReXGlue. Beta 0.8 has the 3D menu, Custom Games, local split screen for one to four players, and Forge. Theater can be opened. Recording and saved-film playback are not fully validated. The frame cap is the original 30 fps. The release archive is OpenH3M-beta-0.8-win-x64.zip and the program is OpenH3M.exe.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-07
Evidence class: C1 partial scope or analysis entry

Stars: 27
Last commit: 2026-10-29
Language: Python

GitHub data as of 2026-11-10

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Evidence

Demo screenshot from the project's public documentation

Observed: Download and demo observed; the case covers part of the target software.
Scope: Partial
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Windows 10 or 11, 64-bit, and a Direct3D 12 GPU. Extract the disc filesystem into a game folder beside OpenH3M.exe so that game\default.xex and game\maps\ exist.
The README does not name a license.

Cite

BibTeX

@misc{spartan-h3m,
  title = {{Spartan: recompiling Halo 3 Mythic multiplayer for Windows}},
  howpublished = {\url{https://github.com/GTTeancum/OpenH3M}},
  url = {https://github.com/GTTeancum/OpenH3M},
  urldate = {2026-11-07},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/spartan-h3m/}}
}

Plain text

Spartan: recompiling Halo 3 Mythic multiplayer for Windows. https://github.com/GTTeancum/OpenH3M (accessed 2026-11-07). Awesome REA entry: https://awesomerea.org/resources/spartan-h3m/

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About this entry

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Primary sources

README.md GitHub · GTTeancum/OpenH3M · Revision 9c46972