Case study

Rad-Therapy: recreating Half-Life in QuakeC

Rad-Therapy is a QuakeC game for the FTE engine that plays the 1998 Half-Life campaign and deathmatch. Menus, client, server, and the network sub-protocol run in QuakeC. The release file package_valve.pk3 goes in HL1/valve/. A source build clones the game into the Nuclide SDK and runs make game GAME=valve. Launch can pass -halflife, and mods use fteqw -halflife -game.

Targets: Game
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-07
Evidence class: C1 partial scope or analysis entry

Stars: 324
Last commit: 2025-10-12
Language: QuakeC
License (GitHub): ISC

GitHub data as of 2026-11-10

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Evidence

Demo screenshot from the project's public documentation

Observed: Download and demo observed; the case covers part of the target software.
Scope: Partial
Checked: 2026-11-09

How evidence classes are assigned

Requirements & limits

FTE and package_valve.pk3 for play. A source change needs the Nuclide SDK and make.
License: ISC for the source. Branding and the logo are CC BY 4.0.

Cite

BibTeX

@misc{rad-therapy,
  title = {{Rad-Therapy: recreating Half-Life in QuakeC}},
  howpublished = {\url{https://github.com/eukara/freehl}},
  url = {https://github.com/eukara/freehl},
  urldate = {2026-11-07},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/rad-therapy/}}
}

Plain text

Rad-Therapy: recreating Half-Life in QuakeC. https://github.com/eukara/freehl (accessed 2026-11-07). Awesome REA entry: https://awesomerea.org/resources/rad-therapy/

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Primary sources

README.md GitHub · eukara/freehl · Revision 041a3fd