# Retro-Sonic 3D: a decompilation with an SDL/OpenGL renderer

> Retro-Sonic 3D Decompilation reconstructs Retro-Sonic 3D: Sky Worlds in C++ and adds a mod loader. Its default build replaces the original DirectX 7 renderer with OpenGL and SDL; running it requires assets from the 2005 demo.

- 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/RSDKModding/RSonic3D-Decompilation>
- Primary source: <https://github.com/RSDKModding/RSonic3D-Decompilation/blob/4c3264ec6cfb357099ad466f00bde69fcfc68c0a/README.md>
- Catalog page: <https://awesomerea.org/resources/retro-sonic-3d-decompilation-case/>
- Record JSON: <https://awesomerea.org/resources/retro-sonic-3d-decompilation-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/retro-sonic-3d-decompilation-case/index.md)

## Requirements & limits

- **Prerequisites:** Assets from the Retro-Sonic 3D 2005 demo are required to run the program.
- **Prerequisites:** Builds require CMake and the documented SDL and OpenGL dependencies; the original DirectX 7 mode requires its SDK and Windows x86.
- **License:** The repository uses its own Retro-Sonic Engine Decompilation Source Code License v1.

## Primary sources

1. <https://github.com/RSDKModding/RSonic3D-Decompilation/blob/4c3264ec6cfb357099ad466f00bde69fcfc68c0a/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.