# Xenosaga Episode I: an in-progress PlayStation 2 decompilation

> Xenosaga Episode I decomp reconstructs source for the NTSC-U PlayStation 2 release and builds its SLUS_204.69 ELF. The repository contains game C files, symbols and build configuration; its build starts from an executable extracted from the user's game disc.

- 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/SquareMan/xenosaga>
- Primary source: <https://github.com/SquareMan/xenosaga/blob/4c969ed898755b50534084b00a3ab4e87b4690fb/README.md>
- Catalog page: <https://awesomerea.org/resources/xenosaga-episode-i-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/xenosaga-episode-i-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/xenosaga-episode-i-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** An original game copy and extracted SLUS_204.69 executable are required.
- **Prerequisites:** The documented Ubuntu setup uses MIPS binutils, a MIPS GCC toolchain, Python and Ninja.
- **Limits:** The decompilation is a work in progress.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/SquareMan/xenosaga/blob/4c969ed898755b50534084b00a3ab4e87b4690fb/README.md>

## More in Games

- [Yakuza: an in-progress PlayStation 2 decompilation](https://awesomerea.org/resources/ogre-yakuza-decomp-case/index.md) · Case study
- [Yoshi's Island DS: an early DSD and Ghidra decompilation](https://awesomerea.org/resources/yoshis-island-ds-decomp-case/index.md) · Case study
- [Yoshi's Story: an in-progress US decompilation](https://awesomerea.org/resources/yoshis-story-decomp-case/index.md) · Case study
- [Yoshi's Woolly World: an early game decompilation](https://awesomerea.org/resources/yoshis-woolly-world-decomp-case/index.md) · Case study
- [Zaxxon: a Commodore 64 cartridge disassembly](https://awesomerea.org/resources/zaxxon-c64-disassembly-case/index.md) · Case study
- [Zombie Revenge: a Dreamcast executable decompilation](https://awesomerea.org/resources/zombie-revenge-decomp-case/index.md) · Case study

## 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.
