Case study

Puniemu: a Yo-kai Watch Puni Puni server emulator

Puniemu recreates a C# server for Yo-kai Watch Puni Puni. Its source handles account creation and game data while implementing the client's AES-based request and response encoding, including compressed responses and salted SHA-1 digests.

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: 61
Last commit: 2026-07-21
Language: C#

GitHub data as of 2026-11-10

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Evidence

Observed: Code and documentation observed; no download method or demo found.
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

Prerequisites: The Yo-kai Watch Puni Puni client is the intended client.
Limits: The server is a work in progress.
Limits: In-app purchases are disabled.
License: No licence file in the repository.

Cite

BibTeX

@misc{puniemu-yokai-watch-case,
  title = {{Puniemu: a Yo-kai Watch Puni Puni server emulator}},
  howpublished = {\url{https://github.com/SuperTavor/puniemu}},
  url = {https://github.com/SuperTavor/puniemu},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/puniemu-yokai-watch-case/}}
}

Plain text

Puniemu: a Yo-kai Watch Puni Puni server emulator. https://github.com/SuperTavor/puniemu (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/puniemu-yokai-watch-case/

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About this entry

The description was reviewed against primary sources.

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Primary sources

README.md GitHub · SuperTavor/puniemu · Revision 5a80196
Src/NHNCrypt/Logic/NHNCrypt.cs GitHub · SuperTavor/puniemu · Revision 5a80196
Src/Server/GameServer/Requests/CreateUser/Logic/CreateUserHandler.cs GitHub · SuperTavor/puniemu · Revision 5a80196