# 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.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/GTTeancum/OpenH3M>
- Primary source: <https://github.com/GTTeancum/OpenH3M/blob/9c4697202625b62157eeffaf0fe6eb290d637b3c/README.md>
- Catalog page: <https://awesomerea.org/resources/spartan-h3m/>
- Record JSON: <https://awesomerea.org/resources/spartan-h3m/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/spartan-h3m/index.md)

## 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.

## Primary sources

1. <https://github.com/GTTeancum/OpenH3M/blob/9c4697202625b62157eeffaf0fe6eb290d637b3c/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.