Case study

th06: an independently matching Touhou 6 decompilation

th06 reconstructs C++ source for Touhou 6: Embodiment of Scarlet Devil retail version 1.02h from the original executable. The workflow uses headless Ghidra analysis, the original MSVC and DirectX toolchain under Wine, and byte comparisons of functions and the whole executable. The author reports that all 511 game functions and the rebuilt executable match the original, with replay traces compared separately.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06
Evidence class: C2 code & docs, no demo or download

Stars: 0
Last commit: 2026-11-06
Language: C++
License (GitHub): GPL-3.0

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-08

How evidence classes are assigned

Requirements & limits

Prerequisites: Requires the user's own retail Touhou 6 files updated to version 1.02h.
Prerequisites: Building requires Wine, Python 3, just, binutils, 7-Zip, Visual C++ .NET 2002, Windows XP SP2 Platform SDK, and DirectX 8.0 SDK.
Prerequisites: Replay checks additionally require Xvfb, xdotool, ImageMagick, 32-bit Mesa, and the ja_JP.UTF-8 locale.
License: GPL-3.0-only licence for the project source.

Cite

BibTeX

@misc{cirno-labs-th06-case,
  title = {{th06: an independently matching Touhou 6 decompilation}},
  howpublished = {\url{https://github.com/Cirno-Labs/th06}},
  url = {https://github.com/Cirno-Labs/th06},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/cirno-labs-th06-case/}}
}

Plain text

th06: an independently matching Touhou 6 decompilation. https://github.com/Cirno-Labs/th06 (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/cirno-labs-th06-case/

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About this entry

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Primary sources

README.md GitHub · Cirno-Labs/th06 · Revision c7bcab1
orig/README.md GitHub · Cirno-Labs/th06 · Revision c7bcab1
docs/exe-parity.md GitHub · Cirno-Labs/th06 · Revision c7bcab1