Case study

Battle Engine Aquila: a matching PC decompilation

onslaught-decomp reconstructs Battle Engine Aquila's PC game code from a published GPL source release and retail executable evidence. It compiles C++ with Visual C++ 6.0 SP5 and compares function sections with BEA.exe; the author reports matches for 5,449 of 5,482 retail functions, with the remaining 33 tied to omitted DirectX sample files.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-07

Stars: 0
Last commit: 2026-11-07
Language: C++
License (GitHub): GPL-3.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: Own pinned BEA.exe and game folder, Visual C++ 6.0 SP5 Professional, and DirectX 9.0 SDK inputs.
Prerequisites: Wine with 32-bit support, Python 3, llvm-undname, and GNU objdump.
Limits: The full linked executable still requires unavailable inputs; function matching is documented separately.
License: GPL-3.0; included third-party material retains its stated terms.

Cite

BibTeX

@misc{onslaught-decomp-case,
  title = {{Battle Engine Aquila: a matching PC decompilation}},
  howpublished = {\url{https://github.com/dlprentice/onslaught-decomp}},
  url = {https://github.com/dlprentice/onslaught-decomp},
  urldate = {2026-11-07},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/onslaught-decomp-case/}}
}

Plain text

Battle Engine Aquila: a matching PC decompilation. https://github.com/dlprentice/onslaught-decomp (accessed 2026-11-07). Awesome REA entry: https://awesomerea.org/resources/onslaught-decomp-case/

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About this entry

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Primary sources

README.md GitHub · dlprentice/onslaught-decomp · Revision 76e277d
docs/check/README.md GitHub · dlprentice/onslaught-decomp · Revision 76e277d