Do I need the original game files to run Shin Megami Tensei: Persona 4 Decompilation?

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

Shin Megami Tensei: Persona 4 Decompilation

DecompilationActive

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

Based on Persona 4

Image of the original game, Persona 4. This project has no screenshots of its own yet.

Persona 4 (original game, not this project) — Image of the original game, Persona 4. This project has no screenshots of its own yet.

Links, repository & details

About

A work-in-progress matching decompilation of Shin Megami Tensei: Persona 4 for the PlayStation 2 (USA v1.00). The goal is readable C that compiles to the original machine code, with unfinished functions still using retail assembly so the build can reproduce the executable. It is not a PC port.

Getting started

It is a build project: you need your own USA disc image, Python, GNU MIPS binutils and the MWCCPS2 and ee-gcc compilers, then you run the setup, split and build steps to rebuild the executable and image and check their hashes.

Known issues & limitations

This is not a PC port.

What you need to run it

Original game files required. The project ships code only; you provide your own copy of the game (PlayStation 2 version).

You need your own Persona 4 USA disc image matching the Redump record.

Status & roadmap

The last committed report lists 9,593 of 13,102 functions as byte-identical, and notes that a byte match does not mean the source is finished.

Additional notes

Related: Persona 3 FES shares engine code with it, and a Digital Devil Saga decompilation covers earlier games in the same engine family.

FAQ

What is Shin Megami Tensei: Persona 4 Decompilation?: Shin Megami Tensei: Persona 4 Decompilation is an open-source decompilation of Persona 4. Source code reconstructed from the original game's compiled binary, so the game can be understood, rebuilt and ported. The original game ran on PlayStation 2.
Do I need the original game files to run Shin Megami Tensei: Persona 4 Decompilation?: Yes. The project does not include the original game's assets, so you need your own copy.