Installation Instructions mod Half-Life 1: Ray Traced
Make sure you have a clean version of the game without any modifications.
Extract the archive and move its contents to the root directory of the game
Launch the game from the rt_bin/xash3d.exe folder. Press X to switch renderers on the fly.
Play!
Optional
If you want to use DLSS in the game, you will need to download two files: RayTracedGL1-Bundle-DLSS and nvngx_dlss.dll
Replace the original rt_bin/RayTracedGL1.dll file with the new bin/RayTracedGL1.dll file from the RayTracedGL1-Bundle-DLSS.zip archive
Then place the nvngx_dlss.dll file from the other archive into the rt_bin folder, making sure it's named nvngx_dlss.dll