Case study

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.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 6
Last commit: 2026-10-27
Language: Python

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

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.

Cite

BibTeX

@misc{sonic-adventure-decomp-case,
  title = {{Sonic Adventure decomp: rebuilding the Dreamcast executable from a local disc}},
  howpublished = {\url{https://github.com/consolesplayingconsoles/sonic-adventure-decomp}},
  url = {https://github.com/consolesplayingconsoles/sonic-adventure-decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/sonic-adventure-decomp-case/}}
}

Plain text

Sonic Adventure decomp: rebuilding the Dreamcast executable from a local disc. https://github.com/consolesplayingconsoles/sonic-adventure-decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/sonic-adventure-decomp-case/

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Primary sources

README.md GitHub · consolesplayingconsoles/sonic-adventure-decomp · Revision 57b416f