Case study

CS:GO Legacy: reconstructing Game Coordinator matchmaking

CS:GO Legacy matchmaking research reconstructs a Game Coordinator path for starting and joining matches in the archived game. It combines a JavaScript coordinator, protobuf definitions, client and Linux server patches, and findings about reservation messages, match draft data, and map transitions; the author reports completing a match with map veto.

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

Stars: 3
Last commit: 2026-09-29
Language: JavaScript
License (GitHub): GPL-3.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: CS:GO Legacy client build 1575 and a Linux srcds server, supplied separately.
Prerequisites: The documented setup also requires a game-server login token and separately built client/server redirection components.
Limits: Only the Prime queue is implemented; other matchmaking modes remain unfinished.
License: GPL-3.0 License.

Cite

BibTeX

@misc{csgo-legacy-matchmaking-case,
  title = {{CS:GO Legacy: reconstructing Game Coordinator matchmaking}},
  howpublished = {\url{https://github.com/rawetrip/csgo-legacy-matchmaking}},
  url = {https://github.com/rawetrip/csgo-legacy-matchmaking},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/csgo-legacy-matchmaking-case/}}
}

Plain text

CS:GO Legacy: reconstructing Game Coordinator matchmaking. https://github.com/rawetrip/csgo-legacy-matchmaking (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/csgo-legacy-matchmaking-case/

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Primary sources

README.md GitHub · rawetrip/csgo-legacy-matchmaking · Revision 955cca6
INSTALL.md GitHub · rawetrip/csgo-legacy-matchmaking · Revision 955cca6