Blender project with script that will convert a colour coded SVG image into a mesh which could then be imported into a game engine for use as a level.
To test the capabilities of this project, simply open in blender and run the script (Click "Run Script"). You should see a 3D level in the viewport which you can take a look around using fly mode (Shift + `).
This is a work in progress and as such will contain bugs and is quite limited in functionality.