Case study

Costume Quest: Windows x86 functional decompilation

Costume Quest reconstructs functions from the Windows x86 Steam build 81338 as C++ source intended to match game behavior. The project records original function addresses, marks uncertain or unfinished sections, and builds with xmake and an x86-capable MSVC toolchain using a separately obtained game copy and Steamworks SDK.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 2
Last commit: 2026-10-19
Language: C++
License (GitHub): BSD-2-Clause

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A legally obtained copy of Costume Quest, Windows x86 Steam Build ID 81338, is required.
Prerequisites: xmake, an x86-capable MSVC toolchain and Steamworks SDK V1.14 are required; the SDK requires a Steamworks partner account.
Limits: Some functions or sections may be marked UNSURE, TODO or UNIMPLEMENTED.
License: The /src game-derived code has no licence; other notice-bearing files use BSD-2-Clause, and external folders have their own licences.

Cite

BibTeX

@misc{costume-quest-decomp-case,
  title = {{Costume Quest: Windows x86 functional decompilation}},
  howpublished = {\url{https://github.com/Costume-Quest-Modding/CostumeQuest-Decomp}},
  url = {https://github.com/Costume-Quest-Modding/CostumeQuest-Decomp},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/costume-quest-decomp-case/}}
}

Plain text

Costume Quest: Windows x86 functional decompilation. https://github.com/Costume-Quest-Modding/CostumeQuest-Decomp (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/costume-quest-decomp-case/

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About this entry

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Primary sources

README.md GitHub · Costume-Quest-Modding/CostumeQuest-Decomp · Revision bca7f60
CONTRIBUTING.md GitHub · Costume-Quest-Modding/CostumeQuest-Decomp · Revision bca7f60