Official website: https://non-npc.github.io/Stellaris-Map-Editor/
Custom Galaxy Creation & Editing Toolkit for Stellaris 4.4.* Pegasus
Design, generate, edit, and export fully customized Stellaris galaxy maps with complete visual control.
Exports target Stellaris 4.4.* and are tested against game version 4.4.1.
Download Stellaris Map Editor v1.0.5
- Interactive real-time galaxy editor
- Procedural galaxy generation
- Custom PNG galaxy shape masks
- Hyperlane editing
- Wormhole editing
- Gateway editing
- Nebula editing
- Star system editing
- Advanced galaxy generation settings
- Real-time visual galaxy preview
- Export directly into Stellaris 4.4-compatible mod format
- Supports symbolic and geometric galaxy layouts
- Automatic galaxy scaling based on star count and galaxy size
- Quick Start
- Custom Galaxy Shapes
- Screenshots
- Editing Features
- Tips
- Known Limitations
- Version History
- Windows 10
- Windows 11
- Stellaris 4.4.* Pegasus (
4.4.*export target)
Launch the editor and create a new galaxy project. The project name is used as the mod name when exported.
You can either:
- Generate a procedural galaxy
- Import a custom PNG mask shape (1024x1024)
Modify:
- Stars
- Hyperlanes
- Nebulas
- Wormholes
- Gateways
- Clusters
Export directly into a playable Stellaris mod format for version 4.4.*. In New Game setup, choose Galaxy Shape: Elliptical, then select your exported scenario.
Stellaris Map Editor supports fully custom galaxy layouts using black-and-white PNG mask images.
You can create:
- Symbols
- Logos
- Geometric patterns
- Chokepoint maps
- Artistic galaxy designs
- Hand-drawn galaxy layouts
Creating a custom galaxy shape is simple:
- Create a
1024x1024PNG image - Use a transparent or white background
- Paint the desired galaxy area in black
- Save the PNG image
- Import it into the editor
| Color | Result |
|---|---|
| Black | Valid galaxy generation area |
| White / Transparent | Empty space |
- Open Stellaris Map Editor
- Open the Custom Shapes menu
- Click Add Custom Galaxy Shape
- Select your PNG mask image
The shape will appear in the custom shape list.
- Open the Generate menu
- Click Generate Custom Galaxy
- Select your imported shape
- Choose:
- Galaxy size
- Star count
- Hyperlane density
- Additional settings
- Click Generate Galaxy
The editor will automatically scale the shape based on the selected galaxy size and star count.
- Review the generated galaxy
- Open the Export menu
- Click Export Mod
Your custom galaxy is now ready for Stellaris.
To create a hyperlane:
- Select the first star
- Select the second star
- Click Add Hyperlane
Nebulas can be added and resized from the Nebula tab. Adding a nebula will position it at 0,0 then you can change its x/y and size.
Select two stars (from drop downs) and create a wormhole pair.
Select a star (from drop down) and add a gateway.
- Create stars
- Move stars
- Rename stars
- Modify system data
- Configure planets and moons
- Create hyperlanes
- Remove hyperlanes
- Quickly search systems using keyboard shortcuts
- Create nebulas
- Resize nebulas
- Reposition nebulas
- Create paired wormholes
- Configure wormhole endpoints
- Add gateways to systems
- Configure gateway placement
You can find the list of valid planet classes and initializers and more at the official wiki https://productionwiki-stellaris.paradoxwikis.com/index.php?title=Empire_modding
If objects are difficult to drag:
- Zoom in using the mouse wheel
- Fine placement becomes much easier when zoomed closer
Click and drag empty space to pan around the galaxy.
In dropdown fields you can repeatedly press a letter to quickly cycle through matching system names.
Example:
- Press
Srepeatedly to quickly locate systems beginning withS
- Only stars can currently be moved directly on the canvas
- Nebulas, wormholes, gateways, and hyperlanes are edited from their respective tabs
- Very large galaxies may take longer to generate (2000 stars take about 45s-60s)
- After editing an object, you need to reselect it to edit it again. This may be changed in the future.
- Stellaris 4.4.* Pegasus compatibility update
- Default export target updated to
4.4.* - Fixed invalid
core_clustergalaxy shape in exported scenarios - Fixed gateway spawn syntax for Stellaris 4.4 export
- Fixed generated system initializers exceeding Stellaris system size limits
- Removed Fallen Empires and Marauders from Project Settings (generator controls these)
- Added validation warnings for nebulas, wormholes, and gateways
Hyperlanes tab improvements
- Selecting a second star now automatically fills the To field
- Existing hyperlanes auto-select in the list
- Delete Selected now removes the lane between From and To
- Fixed a y-axis bug when moving stars
- Added Move Selected Star button
- Selected objects now auto-center on the canvas
- Improved visual highlights for selected objects
Created for the Stellaris modding community.
This project is provided as-is for personal and community use.