# open-spyro: matching decompilation of Spyro the Dragon

> open-spyro rebuilds Spyro the Dragon's PlayStation executable and 37 overlays byte for byte from matched C and retained original assembly. Its build uses a locked GCC 2.7.2 toolchain and per-function instruction diffs. The author reports that all counted game-code bytes match; readability cleanup continues.

- 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/theMagicalKarp/open-spyro>
- Primary source: <https://github.com/theMagicalKarp/open-spyro/blob/ce2e6a59f9881d544ed8093882db09dda466b058/README.md>
- Catalog page: <https://awesomerea.org/resources/open-spyro-case/>
- Record JSON: <https://awesomerea.org/resources/open-spyro-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/open-spyro-case/index.md)

## Requirements & limits

- **Prerequisites:** Supply an original Spyro the Dragon disc image containing the supported SCUS_942.28 release.
- **Prerequisites:** Docker and uv are required for the documented matching build; ISO creation and play also use mkpsxiso, dumpsxiso and DuckStation.
- **Limits:** The author reports 100% matching for counted game-code bytes; readability cleanup remains in progress.
- **License:** CC0-1.0 license.

## Primary sources

1. <https://github.com/theMagicalKarp/open-spyro/blob/ce2e6a59f9881d544ed8093882db09dda466b058/README.md>
2. <https://github.com/theMagicalKarp/open-spyro/blob/ce2e6a59f9881d544ed8093882db09dda466b058/tools/open-spyro/README.md>

## More in Games

- [Over the Hedge: an ongoing PlayStation 2 matching decompilation](https://awesomerea.org/resources/over-the-hedge-ps2-decomp-case/index.md) · Case study
- [Pac-Man NES Source Reconstruction: seven byte-identical cartridge revisions](https://awesomerea.org/resources/pac-man-nes-source-reconstruction-case/index.md) · Case study
- [Paper Mario: matching Nintendo 64 decompilation for four releases](https://awesomerea.org/resources/paper-mario-matching-decomp-case/index.md) · Case study
- [Paper Mario: The Thousand-Year Door: an early matching GameCube decompilation](https://awesomerea.org/resources/paper-mario-ttyd-decomp-case/index.md) · Case study
- [Paper Mario: The Thousand-Year Door: seven-version matching decompilation](https://awesomerea.org/resources/ttyd-seven-version-decomp-case/index.md) · Case study
- [Paperboy: an in-progress matching Nintendo 64 decompilation](https://awesomerea.org/resources/paperboy-n64-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.