OpenNFSPU

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OpenNFSPUPorsche Unleashed, reimplemented

A faithful reimplementation of Need for Speed: Porsche Unleashed (Electronic Arts, 2000) in C11, ported function by function from the Windows game. It runs the game from your own copy, as one WebAssembly module for the gasm runtime, natively and in the browser. Early work in progress.

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Play in the browser
Status

Faithful

Not an emulator and not a remake. The goal is the original's behaviour, its handling model, AI and quirks included, ported from Porsche.exe with the same arithmetic.

Your own data

Reads the installed game folder (GameData, FEData, Porsche.exe). Even the original's tables are read from its executable at run time. Nothing from the game is in OpenNFSPU.

Game data

Runs on gasm

One opennfspu.wasm for macOS, Linux, Windows and the browser on the gasm WebAssembly game runtime. The original's Direct3D 7 rendering goes to OpenGL ES 3.0 (WebGL 2 in the browser).

Running on gasm

In the browser

Choose your game folder once and run it in the browser. Your data stays on your device.

Play

Early, and honest about it

The project infrastructure, the file layer and the data format decoders come first. The game is not playable yet.

Status

Reverse engineered in the open

The function inventory of the original program and the notes on its formats are published with the code.

Reverse-engineering notes

Built for gasm ​

Built for gasmBuilt for gasm

OpenNFSPU is one WebAssembly module, opennfspu.wasm, running on gasm, a portable game runtime: the same module natively (gasm-run) and in the browser. See Running on gasm, or play in the browser.

Status ​

Early: infrastructure and format decoders. The game is not playable yet. Details in Status.

Sibling projects ​

OpenNFSPU follows the conventions of OpenRF (Return Fire) and OpenGTA (Grand Theft Auto): a portable C11 core, ported from the original executable, on gasm.

OpenNFSPU is released under the GPL-3.0. Need for Speed: Porsche Unleashed is © 2000 Electronic Arts; Porsche is a trademark of Dr. Ing. h.c. F. Porsche AG. OpenNFSPU contains no original code or assets and is not affiliated with them: it runs the game from your own copy. It runs on gasm.