# Shadow of the Colossus: matching decompilation of the PS2 release

> Shadow of the Colossus reconstructs functions from the NTSC-U PlayStation 2 game in C and checks rebuilt machine code against a user-provided original. Its build workflow compares output byte for byte, while function files and shared headers hold the recovered code and types. The author reports that 582 of 1,043 functions match exactly.

- 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/NathanFahey23/Shadow-of-the-Colossus-Decomp>
- Primary source: <https://github.com/NathanFahey23/Shadow-of-the-Colossus-Decomp/blob/1c4a0fa3db85895aa3768f9049df4894dfb0ebb7/README.md>
- Catalog page: <https://awesomerea.org/resources/shadow-of-the-colossus-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/shadow-of-the-colossus-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/shadow-of-the-colossus-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Provide your own NTSC-U PlayStation 2 game copy as baserom.bin.
- **Prerequisites:** The build requires decomp.wtf for the period compiler and assembler.
- **Limits:** The author reports 582 of 1,043 functions matched byte for byte; reconstruction remains partial.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/NathanFahey23/Shadow-of-the-Colossus-Decomp/blob/1c4a0fa3db85895aa3768f9049df4894dfb0ebb7/README.md>

## More in Games

- [Shadow the Hedgehog: a matching GameCube decompilation](https://awesomerea.org/resources/shadow-gc-decomp-case/index.md) · Case study
- [Shadow the Hedgehog: a three-region GameCube decompilation](https://awesomerea.org/resources/shadow-the-hedgehog-decomp-case/index.md) · Case study
- [Shaun Palmer's Pro Snowboarder: a PS2 decompilation and format study](https://awesomerea.org/resources/shaun-palmers-pro-snowboarder-decomp-case/index.md) · Case study
- [Shin Megami Tensei III: Nocturne: matching PS2 decompilation](https://awesomerea.org/resources/smt3-nocturne-decomp-case/index.md) · Case study
- [Shining Force CD: a reassemblable game disassembly](https://awesomerea.org/resources/sfcd-disasm-case/index.md) · Case study
- [Shining in the Darkness: a rebuildable 68k disassembly](https://awesomerea.org/resources/shining-in-the-darkness-disassembly-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.