Quarry

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Builds, help with setup, bug reports and news all live there.

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Quarry is a Windows tool that builds the data for the Sandstone Engine from a PS2 disc image you already own.

No game assets are included here. Quarry only reads the disc image you provide and writes out a data/ folder the engine loads.

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Getting it

Grab Quarry-vN.zip from the Releases - it's Quarry.exe plus an embedded Python and every library it needs, so the only thing you install is the .NET runtime the app itself needs.

Requirements

.NET Desktop Runtime 8, x64

• pick Desktop Runtime under .NET 8. Not the SDK, and not the plain runtime, which has no Windows Forms. Windows offers the download itself if you run Quarry without it.

Nothing else: Python, numpy, Pillow and lz4 all ship inside the folder.

(Or build it yourself - see Building below.)

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Using it

• Run Quarry.exe
• Point it at your own extracted PS2 disc image
• Tick the sections you want (world, vehicles, peds, HUD, interiors, audio, cutscenes …)
• Run - it writes a data/ folder

Then copy that data/ folder next to the engine's EBOOT.PBP on your PSP (PSP/GAME/SANDSTONE/). See the engine repo for the install steps.

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Building

Needs only the .NET 8 SDK (dotnet). The embedded Python and the wheels are fetched once into .cache/.

pwsh -File build.ps1 -Clean

Produces dist/Quarry/ (the runnable folder) and dist/Quarry-vdev.zip.

• src/ - the Quarry C# GUI + convert pipeline
• bakers/ - the Python bakers that read the disc and emit each data file

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Credits

• SandstoneDev - converter and engine. Developed with the help of Claude Code.
• Special thanks to DenielX for help with the engine's graphics work - GitHub · YouTube

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Disclaimer

Provided for interoperability, preservation, and homebrew use with a copy of the source game you legally own. This project ships no copyrighted game data - it operates only on a disc image you supply. Trademarks and game content belong to their respective owners; this project is not affiliated with or endorsed by any game publisher. Rightsholders may reach the maintainer at [email protected].