# Extermination: matching PS2 decompilation and gameplay traces

> Extermination reconstructs source for the USA PS2 game's executable and uses a byte-identity build gate across the boot ELF and overlays. Its tools also capture play from the original in a PCSX2 fork, producing input and machine-state traces for comparison with a separate native port.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/FastestMolasses/Extermination>
- Primary source: <https://github.com/FastestMolasses/Extermination/blob/17e54e382a7d85cdba1e6f2fdd8dabee489b0993/README.md>
- Catalog page: <https://awesomerea.org/resources/extermination-ps2-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/extermination-ps2-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/extermination-ps2-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Requires the user's own legal copy of Extermination (USA, SCUS-97112).
- **Prerequisites:** The documented play-recording workflow uses macOS, a PCSX2 debugging fork and the project's Python environment.
- **Limits:** The reconstruction and native-port integration remain unfinished.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/FastestMolasses/Extermination/blob/17e54e382a7d85cdba1e6f2fdd8dabee489b0993/README.md>
2. <https://github.com/FastestMolasses/Extermination/blob/17e54e382a7d85cdba1e6f2fdd8dabee489b0993/docs/PROGRESS.md>

## More in Games

- [F-15 Strike Eagle 2: reconstructing the DOS game source](https://awesomerea.org/resources/f15-strike-eagle-2-reconstruction-case/index.md) · Case study
- [F-Zero GX: a matching GameCube decompilation](https://awesomerea.org/resources/fzero-gx-decomp-case/index.md) · Case study
- [F-Zero GX: matching the GameCube executables from C](https://awesomerea.org/resources/f-zero-gx-decomp-case/index.md) · Case study
- [F-Zero X Expansion Kit: matching decompilation of the disk expansion](https://awesomerea.org/resources/fzerox-expansion-kit/index.md) · Case study
- [F-Zero X: a work-in-progress matching Nintendo 64 decompilation](https://awesomerea.org/resources/f-zero-x-decomp-case/index.md) · Case study
- [F-Zero X: an early US N64 decompilation](https://awesomerea.org/resources/bttrdrgn-f-zero-x-decomp-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.