BG3 Script Extender

Some mods require the BG3 Script Extender (bg3se) to function.

What is bg3se?

BG3 Script Extender adds scripting capabilities to Baldur's Gate 3, enabling more complex mods.

Project: github.com/Norbyte/bg3se

Check Status

bookeeper bg3se status

This shows:

• Whether bg3se is installed
• Path to the DLL file

Install bg3se

bookeeper bg3se install

This will:

1. Fetch the latest release from GitHub
2. Download the zip file
3. Extract DWrite.dll to BG3's bin directory

Steam Launch Configuration

After installing bg3se, you need to configure Steam to load it:

1. Open Steam
2. Right-click Baldur's Gate 3 → Properties
3. In "Launch Options", add:

WINEDLLOVERRIDES="DWrite=n,b" %command%

This tells Wine/Proton to use the native DWrite.dll (bg3se) instead of the built-in one.

Verify Installation

After configuring Steam:

1. Launch BG3
2. Check the main menu - bg3se usually shows a version indicator
3. If mods requiring bg3se work, you're good!

Troubleshooting

bg3se Not Loading

• Check Steam launch options are set correctly
• Verify DWrite.dll exists in BG3's bin directory:

  ls "$(bookeeper get bg3-bin-dir)/DWrite.dll"
  

Wrong Proton Version

Some bg3se versions work better with specific Proton versions. Check:

• bg3se releases for compatibility notes
• BG3 modding community for recommendations

Manual Installation

If automatic installation fails:

1. Download from GitHub releases
2. Extract DWrite.dll
3. Copy to: $(bookeeper get bg3-bin-dir)/