# Digimon World 4: a matching PS2 decompilation

> A work-in-progress matching decompilation reconstructs the USA PS2 release of Digimon World 4 as readable C and C++ source. The build compares recovered functions byte for byte with a user-provided retail executable and links remaining code from that executable; the author's progress report lists 76.5% of code bytes as fully matched.

- Type: Case study
- Targets: Binary · Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-08
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/crashbashash/DW4_Decomp>
- Primary source: <https://github.com/crashbashash/DW4_Decomp/blob/39dcd9f3fa87cb198cbf35727b6dde11e26cb6ef/README.md>
- Catalog page: <https://awesomerea.org/resources/digimon-world-4-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/digimon-world-4-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/digimon-world-4-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires an x86-64 Linux system and a user's own Digimon World 4 USA SLUS-20836 disc image or executable.
- **Prerequisites:** The build requires Python 3, GNU make, mipsel-linux-gnu binutils, wibo and the pinned compilers described in the installation guide.
- **Limits:** The author reports 76.5% of code bytes fully matched; the decompilation remains unfinished.
- **License:** Project tooling and documentation are dedicated under CC0 1.0; the LICENSE file gives separate terms for recovered game material.

## Primary sources

1. <https://github.com/crashbashash/DW4_Decomp/blob/39dcd9f3fa87cb198cbf35727b6dde11e26cb6ef/README.md>
2. <https://github.com/crashbashash/DW4_Decomp/blob/39dcd9f3fa87cb198cbf35727b6dde11e26cb6ef/PROGRESS.md>
3. <https://github.com/crashbashash/DW4_Decomp/blob/39dcd9f3fa87cb198cbf35727b6dde11e26cb6ef/LICENSE>

## More in Games

- [Digimon World DS: matching Nintendo DS decompilation](https://awesomerea.org/resources/digimon-world-ds-decomp-case/index.md) · Case study
- [Digimon World: a PS1 decompilation with binary comparison](https://awesomerea.org/resources/digimon-world-decomp-case/index.md) · Case study
- [Digital Devil Saga: matching decompilation of two PS2 games](https://awesomerea.org/resources/dds-decomp/index.md) · Case study
- [Dino Crisis 2 Decompilation: a matching PlayStation reconstruction](https://awesomerea.org/resources/dino-crisis-2-decomp-case/index.md) · Case study
- [Dinosaur Planet: byte-exact Nintendo 64 decompilation](https://awesomerea.org/resources/dinosaur-planet-decomp/index.md) · Case study
- [Dogcomp: a PAL PlayStation 2 decompilation of Dog's Life](https://awesomerea.org/resources/dogs-life-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.