# 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.

- 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/matty45/Crackdown2-Decomp>
- Primary source: <https://github.com/matty45/Crackdown2-Decomp/blob/0290d969ba91639f4769a9b308d9cad5213b7e44/README.md>
- Catalog page: <https://awesomerea.org/resources/crackdown-2-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/crackdown-2-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/crackdown-2-decomp-case/index.md)

## 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.

## Primary sources

1. <https://github.com/matty45/Crackdown2-Decomp/blob/0290d969ba91639f4769a9b308d9cad5213b7e44/README.md>

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## 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.