Case study

NeoXResearch: investigating NeoX archives and Python bytecode

NeoXResearch investigates NetEase's NeoX game engine through static analysis and dynamic debugging of its native library. It documents NPK archive headers and metadata entries, the file-loading and decryption path, and changes to Python bytecode opcodes. Python scripts support NPK unpacking, decryption and bytecode repair.

Targets: Binary · Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-08

Stars: 74
Last commit: 2022-06-18
Language: Python

GitHub data as of 2026-11-10

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Requirements & limits

Prerequisites: The documented analysis uses IDA Pro and dynamic debugging of a NeoX core shared object.
Prerequisites: The bytecode workflow compares NeoX's Python 2.7 implementation with CPython and uses uncompyle6.
License: No licence file in the repository.

Cite

BibTeX

@misc{neoxresearch-neox-format-case,
  title = {{NeoXResearch: investigating NeoX archives and Python bytecode}},
  howpublished = {\url{https://github.com/ZhangFengze/NeoXResearch}},
  url = {https://github.com/ZhangFengze/NeoXResearch},
  urldate = {2026-11-08},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/neoxresearch-neox-format-case/}}
}

Plain text

NeoXResearch: investigating NeoX archives and Python bytecode. https://github.com/ZhangFengze/NeoXResearch (accessed 2026-11-08). Awesome REA entry: https://awesomerea.org/resources/neoxresearch-neox-format-case/

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Primary sources

README.md GitHub · ZhangFengze/NeoXResearch · Revision 6a61b94