Allows you to play the original modification CS 1.5 with Rad-Therapy.
To run it, all you need is FTEQW, Rad-Therapy, and the latest release .pk3 file, which you save into Half-Life/valve/ and Half-Life/cstrike/ respectively. That's about it. You can install updates through the Configuration > Updates menu from here on out.
Please do not file bugs if you see missing/broken content while not using the original data. The version on Steam is not the same game as the mod (which was free)
Here's the quick and dirty instructions:
$ git clone https://code.idtech.space/vera/nuclide Nuclide-SDK && cd Nuclide-SDK
# (only required if you don't have an up-to-date FTEQW & FTEQCC in your PATH)
$ make update && make fteqw
# build the menu (from valve/) then our own game-logic:
$ git clone https://code.idtech.space/fn/valve valve && make game GAME=valve
$ git clone https://code.idtech.space/fn/cstrike cstrike && make game GAME=cstrike
You can also issue make inside valve/src/ and cstrike/src, but it won't generate some additional helper files.
** !! You need to also provide data-files !! **
This should be self explanatory. Half-Life and Counter-Strike are owned by Valve and protected under copyright.
If you're a fellow Matrix user, join the Nuclide Space to see live-updates and more! https://matrix.to/#/#nuclide:matrix.org
Join us on #freecs via irc.libera.chat and talk/lurk or discuss bugs, issues and other such things. It's bridged with the Matrix room of the same name!
We've had people ask in the oddest of places for help, please don't do that.
- Spike for FTEQW and for being the most helpful person all around!
- Xylemon for the hundreds of test maps, verifying entity and game-logic behaviour
- CYBERDEViL for his work on making Bots fascinated with Bomb Defusal
- mikota for his work on refining the bullet spread code
- To my supporters on Patreon, who are always eager to follow what I do.
- Any and all people trying it, tinkering with it etc. :)
AssKicR and Romaaa for their initial deathmatch spawn point information, originally provided to BAILOPAN their CSDM mod.
ISC License
Copyright (c) 2016-2025 Marco "eukara" Cawthorne marco@icculus.org
Permission to use, copy, modify, and distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.