Baldur's Gate : The Sword Coast Chronicles : NWN2 Persistent World

• Install Steam with the official .deb binary. Don't use snap like Ubuntu defaults to. This caused me a lot of problems.
• Make sure the files hdlinstall.reg, ClientExtension.hdl and the NWlauncher.exe is in the install folder: (...)/steamapps/common/Neverwinter Nights 2/
• Edit the nwn.ini file in the install folder and set the following:
  

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  [Display Options]
  FullScreen=0
  AllowWindowedMode=1

• Get proton to register hdlinstall.reg to the prefix regedit in the (...)/steamapps/compatdata/2760. Paste this into a terminal (The "(...)" is your path up to your steam library):
  

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  STEAM_COMPAT_CLIENT_INSTALL_PATH="$HOME/.steam/steam" \
  STEAM_COMPAT_DATA_PATH="(...)/steamapps/compatdata/2760" \
  "$HOME/.steam/steam/steamapps/common/Proton - Experimental/proton" run regedit "(...)/steamapps/common/Neverwinter Nights 2/hdlinstall.reg"

• Create a script called nwn2ce.sh that does the following inside the install folder:
  

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  #!/bin/bash
  
  GAME_DIR="(...)/steamapps/common/Neverwinter Nights 2"
  STEAM_APPID=2760
  
  cd "$GAME_DIR" || { echo "Game folder not found!"; exit 1; }
  
  # Backup original exe
  if [ -f "nwn2main.exe" ]; then
      mv nwn2main.exe nwn2main.exe.original
  else
      echo "No nwn2main.exe found to back up!"
      exit 1
  fi
  
  # Replace with launcher exe
  cp NWLauncher.exe nwn2main.exe
  
  echo "Launcher installed. Starting Neverwinter Nights 2 via Steam..."
  
  # Launch game through Steam, non-blocking
  steam steam://rungameid/$STEAM_APPID &
  
  # Wait for a bit to let the game start
  sleep 15
  
  # Restore original exe
  mv nwn2main.exe.original nwn2main.exe
  echo "Original executable restored."
  
  exit 0

• Make sure the script is executable. Navigate to the install folder in the terminal and run:
  

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  chmod +x nwn2ce.sh

• Add the script as a non-steam game in steam.
• Set launch options on the actual NWN2 game in steam to
  

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  PROTON_NO_ESYNC=1 PROTON_NO_FSYNC=1 %command%

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Tantive wrote: ↑Fri Nov 14, 2025 4:54 pm This works?! I'm going to have to try it with my Steam Deck. It's using an arch distro with kde however, which hopefully wouldn't be an issue.

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sudo pacman -S steam

Tantive wrote: ↑Mon Feb 09, 2026 11:54 am If one has the GoG copy of the game?