# Libre40: a static-recompilation port of Army of Two: The 40th Day

> Libre40 builds a native Windows host for the Xbox 360 release of Army of Two: The 40th Day using ReXGlue static recompilation. Its extraction and code-generation scripts use the player's disc image to produce local game files and recompiled source; the author reports playable single-player gameplay.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/automoto/Libre40>
- Primary source: <https://github.com/automoto/Libre40/blob/497fac9c84dbe46ad907af44415bbca3a1ddc21c/README.md>
- Catalog page: <https://awesomerea.org/resources/libre40-case/>
- Record JSON: <https://awesomerea.org/resources/libre40-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/libre40-case/index.md)

## Requirements & limits

- **Prerequisites:** A legally obtained Army of Two: The 40th Day Xbox 360 disc image is required.
- **Prerequisites:** Windows, CMake 3.25+, Ninja, LLVM/Clang, Visual Studio 2022 Build Tools, Python 3 and the ReXGlue SDK are required.
- **Limits:** Movies currently show a black screen; local and online multiplayer are being worked on.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/automoto/Libre40/blob/497fac9c84dbe46ad907af44415bbca3a1ddc21c/README.md>
2. <https://github.com/automoto/Libre40/blob/497fac9c84dbe46ad907af44415bbca3a1ddc21c/docs/development.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.