mf-install
mf-installcab

Download mediafoundation:

  • git clone https://github.com/z0z0z/mf-install.git ~/mediafoundation/mf-install
  • git clone https://github.com/z0z0z/mf-installcab.git ~/mediafoundation/mf-installcab

The following steam folders(WINEPREFIX location) might differ if you installed to an alternative folder but I've included the default(home) steam folder which should be changed if you installed the game to a different drive.

  • cd ~/mediafoundation/mf-install && WINEPREFIX=~/.steam/steam/steamapps/compatdata/399810/pfx ./mf-install.sh proton
  • cd ~/mediafoundation/mf-installcab && WINEPREFIX=~/.steam/steam/steamapps/compatdata/399810/pfx ./install-mf-64.sh

After you do this, go into your steam library and open Properties for Call of Cthulhu. Then go to the Compatibility tab and check Force use of specific steam play tool. Then select Proton 5.0-* (it can be 5.0-10 or 5.0-9) as far as I know it should be version 5.0

Enjoy the game!

Edit

Pub: 03 Jan 2021 03:00 UTC

Edit: 09 Apr 2021 14:16 UTC

Views: 539