# Touhou Eiyashou: matching-source reconstruction of version 1.00d

> Touhou Eiyashou reconstructs C++ source for the Japanese 1.00d release of Touhou 8 and compares rebuilt code with the original executable using reccmp. The public repository contains source, build scripts and mapping data; further decompilation is being developed privately until completion.

- 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/GensokyoClub/th08>
- Primary source: <https://github.com/GensokyoClub/th08/blob/f345c7dee07b849f2ff93a0029ab5ede126bf12c/README.md>
- Catalog page: <https://awesomerea.org/resources/gensokyoclub-th08-case/>
- Record JSON: <https://awesomerea.org/resources/gensokyoclub-th08-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/gensokyoclub-th08-case/index.md)

## Requirements & limits

- **Prerequisites:** An original th08.exe version 1.00d is required.
- **Prerequisites:** The build uses Python 3.4 or newer, Visual Studio 2002 and DirectX 8.0; Linux and macOS workflows also use Wine and msiextract.
- **Limits:** The public source is an early, unfinished snapshot.
- **License:** MIT.

## Primary sources

1. <https://github.com/GensokyoClub/th08/blob/f345c7dee07b849f2ff93a0029ab5ede126bf12c/README.md>

## More in Games

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- [Toy Story 2: a PC game decompilation with reccmp comparisons](https://awesomerea.org/resources/toy-story-2-pc-decomp-case/index.md) · Case study
- [Toy Story disassembly: rebuilding the Mega Drive ROM from generated source](https://awesomerea.org/resources/toy-story-mega-drive-disasm-case/index.md) · Case study
- [Turok 2: Seeds of Evil: a matching Nintendo 64 decompilation](https://awesomerea.org/resources/turok-2-seeds-of-evil-decomp-case/index.md) · Case study
- [Turok 3: an archived multi-version decompilation](https://awesomerea.org/resources/turok-3-decomp-case/index.md) · Case study
- [Turok: Rage Wars: matching decompilation of five N64 releases](https://awesomerea.org/resources/abun64-rage-wars-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.