Case study

Crackdown 2: byte-matched Xbox 360 decompilation

Crackdown2-Decomp reconstructs C++ source for the Xbox 360 title-update build of Crackdown 2. It uses the original XDK compiler and game flags to compare each compiled function byte for byte with the user's executable, while additional checks compare references, source ownership, and a full split-game relink.

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

Stars: 11
Last commit: 2026-11-09
Language: C++
License (GitHub): AGPL-3.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A user supplied latest title-update XEX matching the documented SHA-1.
Prerequisites: Xbox 360 XDK 9328 with the pinned compiler build; Windows, PowerShell, git, Python 3.8 or later, and Rust build tools.
Limits: The author reports 3,332 matched functions out of 74,551 as of 2026-11-06.
License: AGPL-3.0-or-later license.

Cite

BibTeX

@misc{crackdown-2-decomp-case,
  title = {{Crackdown 2: byte-matched Xbox 360 decompilation}},
  howpublished = {\url{https://github.com/matty45/Crackdown2-Decomp}},
  url = {https://github.com/matty45/Crackdown2-Decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/crackdown-2-decomp-case/}}
}

Plain text

Crackdown 2: byte-matched Xbox 360 decompilation. https://github.com/matty45/Crackdown2-Decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/crackdown-2-decomp-case/

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Primary sources

README.md GitHub · matty45/Crackdown2-Decomp · Revision 0290d96