# Sonic Adventure decomp: rebuilding the Dreamcast executable from a local disc

> Sonic Adventure decomp reconstructs the European Dreamcast game's executable from a user-supplied disc, using per-function SH-4 assembly files as a byte-matching build baseline. Its tools split the executable, map text and models, disassemble SH-4 code, and compare recovered C functions against original behavior; the author reports that no C functions are complete yet.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-08
- Original resource: <https://github.com/consolesplayingconsoles/sonic-adventure-decomp>
- Primary source: <https://github.com/consolesplayingconsoles/sonic-adventure-decomp/blob/57b416f2dd4fb23f924d9cb4b16ae2fa79041c9d/README.md>
- Catalog page: <https://awesomerea.org/resources/sonic-adventure-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/sonic-adventure-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/sonic-adventure-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** An owned Sonic Adventure Dreamcast disc in the specified European release, supplied as a .gdi with track files.
- **Prerequisites:** Python 3, Docker and a Katana SDK are required for the documented build; Linux x86_64 can use the stated wibo path instead of Docker.
- **Limits:** The author reports 0 of 5,179 functions completed in C and 1,088 functions named.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/consolesplayingconsoles/sonic-adventure-decomp/blob/57b416f2dd4fb23f924d9cb4b16ae2fa79041c9d/README.md>

## More in Games

- [Sonic Adventure DX: an early matching decompilation of the 2014 Steam release](https://awesomerea.org/resources/sonic-adventure-dx-steam-decomp-case/index.md) · Case study
- [Sonic Adventure DX: matching reconstruction of the 2014 Steam executable](https://awesomerea.org/resources/sadx-decomp-case/index.md) · Case study
- [Sonic Battle: a matching GBA decompilation](https://awesomerea.org/resources/sonic-battle-decomp-case/index.md) · Case study
- [Sonic Riders: matching decompilation of the GameCube game](https://awesomerea.org/resources/sonic-riders-decomp/index.md) · Case study
- [Sonic Rush Adventure: an in-progress matching DS decompilation](https://awesomerea.org/resources/sonic-rush-adventure-decomp-case/index.md) · Case study
- [Sonic the Fighters: an i960 program ROM disassembly](https://awesomerea.org/resources/sonic-the-fighters-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.