# Shin Megami Tensei III: Nocturne: matching PS2 decompilation

> Shin Megami Tensei III: Nocturne reconstructs readable C source for the US PlayStation 2 release and checks the linked executable against the retail SHA-1. Its build also assembles annotated VU microcode and retains assembly for unfinished functions. The author reports that a dated snapshot recovered 66.32% of game-code bytes from C.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/Megami-Decomps/smt3-decomp>
- Primary source: <https://github.com/Megami-Decomps/smt3-decomp/blob/ab69a6fbdac3fe3735e3a64587d2ef9fcb96a05e/README.md>
- Catalog page: <https://awesomerea.org/resources/smt3-nocturne-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/smt3-nocturne-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/smt3-nocturne-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Linux x86-64 or WSL2 with i386 program support; Python 3.10+, ninja, cpp, and git.
- **Prerequisites:** Own copy of the US game disc image or its SLUS_209.11 executable.
- **Limits:** Decompilation remains incomplete; unfinished functions use assembly fallbacks.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/Megami-Decomps/smt3-decomp/blob/ab69a6fbdac3fe3735e3a64587d2ef9fcb96a05e/README.md>

## More in Games

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- [Shining in the Darkness: a rebuildable 68k disassembly](https://awesomerea.org/resources/shining-in-the-darkness-disassembly-case/index.md) · Case study
- [Shiren the Wanderer 2: matching N64 decompilation](https://awesomerea.org/resources/shiren-2-n64-decomp-case/index.md) · Case study
- [Shox: Rally Reinvented: a function-level PlayStation 2 matching decompilation](https://awesomerea.org/resources/shox-rally-reinvented-decomp-case/index.md) · Case study
- [Sid Meier's SimGolf: source reconstruction of the English 1.03 release](https://awesomerea.org/resources/simgolf-decomp-case/index.md) · Case study
- [Silent Hill: matching PlayStation decompilation of the executable and overlays](https://awesomerea.org/resources/silent-hill-decomp-case/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.