# LSD: Dream Emulator: a matching PlayStation decompilation

> lsd-decomp reconstructs C source for the SLPS-01556 PlayStation release of LSD: Dream Emulator and checks the rebuilt executable by SHA-1. It documents the dream graph, links, randomness and engine systems with function addresses, alongside emulator-based observations; the author reports that all game functions rebuild to the retail bytes.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/klNuno/lsd-decomp>
- Primary source: <https://github.com/klNuno/lsd-decomp/blob/c28230c3222fb521a3097214a1e9438e4cf514f6/README.md>
- Catalog page: <https://awesomerea.org/resources/lsd-decomp-case/>
- Record JSON: <https://awesomerea.org/resources/lsd-decomp-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/lsd-decomp-case/index.md)

## Requirements & limits

- **Prerequisites:** Linux x86-64 with make, git, curl, Python 3 with venv, binutils-mipsel-linux-gnu, and stable Rust.
- **Prerequisites:** Own game disc dump; a Japanese PS1 BIOS dump is needed for in-game emulator checks.
- **Limits:** The author reports that 62 of 4,103 assigned names remain guesses.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/klNuno/lsd-decomp/blob/c28230c3222fb521a3097214a1e9438e4cf514f6/README.md>
2. <https://github.com/klNuno/lsd-decomp/blob/c28230c3222fb521a3097214a1e9438e4cf514f6/docs/engine/README.md>

## More in Games

- [LSD: Dream Emulator: an early PlayStation decompilation](https://awesomerea.org/resources/lsd-dream-emulator-cawfee-decomp-case/index.md) · Case study
- [LSD: Dream Emulator: partial PS1 decompilation and mechanics research](https://awesomerea.org/resources/lsddecomp-case/index.md) · Case study
- [LSUSDISASM: Landstalker US ROM disassembly](https://awesomerea.org/resources/lsusdisasm-landstalker-case/index.md) · Case study
- [Luigi's Mansion: a multi-region GameCube decompilation](https://awesomerea.org/resources/luigis-mansion-lm-decomp-case/index.md) · Case study
- [MadagascarDecomp: reconstructing Madagascar's source](https://awesomerea.org/resources/madagascar-decomp-case/index.md) · Case study
- [Madden Football 64: matching Nintendo 64 decompilation](https://awesomerea.org/resources/madden-football-64-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.