A world in LDtk is a group of levels. The actual representation of a world depends on the world layout setting of your project.
Layouts
![](https://ldtk.io/wp-content/uploads/2020/12/image-23-1024x459.png)
Linear horizontal or Linear vertical: levels are organized in a linear fashion (one after the other).
![](https://ldtk.io/wp-content/uploads/2020/12/image-22-1024x722.png)
Free: levels are organized freely in a 2D space.
![](https://ldtk.io/wp-content/uploads/2020/12/image-21-1024x766.png)
GridVania: levels are organized in a 2D space but constrained on a “world grid“. Each level dimensions are also constrained to the world grid.
Choosing a world layout
![](https://ldtk.io/wp-content/uploads/2021/01/world.png)
- open the World panel (you can press
W
) - click on World settings,
- pick a world layout.