# 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.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-07
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/eukara/freehl>
- Primary source: <https://github.com/eukara/freehl/blob/041a3fdcafec26e0bdde595e9b8f76caacbfd1fe/README.md>
- Catalog page: <https://awesomerea.org/resources/rad-therapy/>
- Record JSON: <https://awesomerea.org/resources/rad-therapy/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/rad-therapy/index.md)

## 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.

## Primary sources

1. <https://github.com/eukara/freehl/blob/041a3fdcafec26e0bdde595e9b8f76caacbfd1fe/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.