What is Virtua Racing Deluxe Decompilation?

Virtua Racing Deluxe Decompilation is an open-source decompilation of Virtua Racing. Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported.

Do I need the original game files to run Virtua Racing Deluxe Decompilation?

Yes. The project does not include the original game's assets, so you need your own copy.

How is Virtua Racing Deluxe Decompilation licensed?

SEGA: © SEGA 1994 (original game); project: unknown (project code). The repository itself is the authoritative source.

Where can I find the unmodified disassembly?

The byte-identical original code is preserved in the `v5.0-freeze` branch.

Virtua Racing Deluxe Decompilation

DecompilationActive

Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported.

Based on Virtua Racing

Image of the original game, Virtua Racing. This project has no screenshots of its own yet.

Virtua Racing (original game, not this project) — Image of the original game, Virtua Racing. This project has no screenshots of its own yet.

Links, repository & details

About

A complete, buildable disassembly of Virtua Racing Deluxe for the Sega 32X, with documentation of the game's internals and ongoing performance work. The README states the original runs at about 20 FPS and the project has doubled the display rate to 40 FPS using camera interpolation.

How it differs from the original

Game logic stays at 20 FPS while the display runs at about 40 FPS, because two interpolated camera frames are rendered per game tick. The README says one hardware constraint, frame buffer swaps outside VBlank, stands between the project and 60 FPS.

Getting started

You must supply your own legal ROM dump of the USA release, as the project includes none.

What you need to run it

Original game files required. The project ships code only; you provide your own copy of the game.

You must provide your own legal ROM dump: `Virtua Racing Deluxe (USA).32x`.
PicoDrive is the listed emulator; BlastEm does not support 32X.

Features

Camera interpolation raises display output to 40 FPS while rendering two interpolated camera frames per game tick.

Summarised from the project's README.

Credits & contributing

The credits list the disassembly and analysis as done by Claude Code with human guidance.

Additional notes

Branches: The byte-identical unmodified disassembly is kept in a separate branch named v5.0-freeze.
Scale: The README reports 823 68K modules and 92 SH2 functions organized and documented.

FAQ

What is Virtua Racing Deluxe Decompilation?: Virtua Racing Deluxe Decompilation is an open-source decompilation of Virtua Racing. Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported.
Do I need the original game files to run Virtua Racing Deluxe Decompilation?: Yes. The project does not include the original game's assets, so you need your own copy.
How is Virtua Racing Deluxe Decompilation licensed?: SEGA: © SEGA 1994 (original game); project: unknown (project code). The repository itself is the authoritative source.
Where can I find the unmodified disassembly?: The byte-identical original code is preserved in the `v5.0-freeze` branch.