# RSDKv2 Decompilation: Retro Engine v2

> RSDKv2 Decompilation is a decompilation of Retro Engine v2, the engine used by the 2008 Sonic Nexus demo. The README adds a built-in mod loader, a settings.ini file, and debug keys, and it builds with CMake. Running it requires Sonic Nexus 2008 demo assets, which are left out of the repository.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/RSDKModding/RSDKv2-Decompilation>
- Primary source: <https://github.com/RSDKModding/RSDKv2-Decompilation/blob/cc411106137dca8d3936c709d6a1875aa788fd9c/README.md>
- Catalog page: <https://awesomerea.org/resources/rsdkv2-decomp/>
- Record JSON: <https://awesomerea.org/resources/rsdkv2-decomp/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rsdkv2-decomp/index.md)

## Requirements & limits

- **Prerequisites:** Sonic Nexus 2008 demo assets are required to run. Clone with git submodules; the README says a GitHub source ZIP omits them.
- **Prerequisites:** Windows builds use Visual Studio with the Desktop development with C++ workload, vcpkg, SDL2, libogg, and libvorbis. Linux package lists include cmake, SDL2, libogg, and libvorbis. macOS follows dependencies/mac/dependencies.txt and an Xcode project.
- **License:** GitHub reports the repository license as NOASSERTION.

## Primary sources

1. <https://github.com/RSDKModding/RSDKv2-Decompilation/blob/cc411106137dca8d3936c709d6a1875aa788fd9c/README.md>

## More in Games

- [RSDKv3 Decompilation: Sonic CD (2011) on a reconstructed Retro Engine v3](https://awesomerea.org/resources/rsdkv3-sonic-cd-decomp-case/index.md) · Case study
- [RSDKv4 Decompilation: Retro Engine v4 and the Sonic 1 & 2 (2013) menus](https://awesomerea.org/resources/rsdkv4-sonic-1-2-decomp-case/index.md) · Case study
- [RSDKv5 Decompilation: reconstructing Retro Engine v5 and v5U](https://awesomerea.org/resources/rsdkv5-engine-decomp-case/index.md) · Case study
- [Rumble Fighter: an early executable decompilation](https://awesomerea.org/resources/rumble-fighter-decomp-case/index.md) · Case study
- [sctools: Sega Channel image extraction and nsf.exe decompilation](https://awesomerea.org/resources/sctools-sega-channel-case/index.md) · Case study
- [sead: decompilation of Nintendo EAD libraries](https://awesomerea.org/resources/sead/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.