- Install the latest version of the original Escape from the darkness mod
- Download the latest Release from https://github.com/malortie/hl-eftd/releases
- Copy the Release eftd folder content into the Escape from the darkness mod directory e.g.
release\eftd -> C:\Program Files (x86)\Steam\steamapps\common\Half-Life\eftd - Run SETUP.bat
- Restart Steam
- Launch the mod