Case study

Gran Turismo 2: reconstructing PS1 executables and overlays

gt2-reversing reconstructs code for Gran Turismo 2's PlayStation release from the North American 1.2 simulation disc. Its build produces the SCUS_944.88 executable and six overlay executables from user-supplied originals, while the source tree contains C implementations, symbols and split configurations.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 43
Last commit: 2024-09-14
Language: C
License (GitHub): CC0-1.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A user-owned North American 1.2 simulation disc supplying SCUS_944.88 and GT2.OVL is required.
Prerequisites: Building requires Linux, Python 3 with splat, MIPS-compatible binutils, Ninja and initialized submodules.
Limits: The build currently supports US 1.2 only and does not reassemble a matching GT2.OVL archive.
License: CC0-1.0 covers the project's work outside tools and include/*.asm; tools retain their own licenses, while the licenses of some included macros are unclear.

Cite

BibTeX

@misc{gt2-reversing-case,
  title = {{Gran Turismo 2: reconstructing PS1 executables and overlays}},
  howpublished = {\url{https://github.com/ginryuoku/gt2-reversing}},
  url = {https://github.com/ginryuoku/gt2-reversing},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/gt2-reversing-case/}}
}

Plain text

Gran Turismo 2: reconstructing PS1 executables and overlays. https://github.com/ginryuoku/gt2-reversing (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/gt2-reversing-case/

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Primary sources

README.md GitHub · ginryuoku/gt2-reversing · Revision 2cfc949