Case study

ds3os: reconstructed Dark Souls 2 and 3 online servers

ds3os reconstructs online servers for Dark Souls 2: Scholar of the First Sin and Dark Souls 3, with matchmaking, profiles and multiplayer features. It includes a loader that redirects the games to a custom server and protobuf definitions for network traffic; some server calls and message fields remain unresolved.

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

Stars: 792
Last commit: 2026-07-10
Language: CMake
License (GitHub): MIT

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A game copy and Steam client; the server authenticates Steam tickets.
Prerequisites: Visual Studio 2022, C++17 and CMake for building.
Limits: Dark Souls 2 support is experimental; some server calls and protobuf fields remain unresolved.
License: MIT license.

Cite

BibTeX

@misc{ds3os-dark-souls-server-case,
  title = {{ds3os: reconstructed Dark Souls 2 and 3 online servers}},
  howpublished = {\url{https://github.com/TLeonardUK/ds3os}},
  url = {https://github.com/TLeonardUK/ds3os},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/ds3os-dark-souls-server-case/}}
}

Plain text

ds3os: reconstructed Dark Souls 2 and 3 online servers. https://github.com/TLeonardUK/ds3os (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/ds3os-dark-souls-server-case/

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Primary sources

README.md GitHub · TLeonardUK/ds3os · Revision 5640687