A level editor that can be used to make mods.  

I've strived to make tools that can be used to add mods to the game, and build the game through those tools.

This update brings the level editor.

You edit the level with a free form WASD camera.  

You can create, save, and load level JSON files …

There was this discussion on another forum, which prompted this short entry:
 

There was this feature, most recently re-implemented into the project (a separate excursion), that provided a cinematic transition between locations; which in return gave more attention to the background. Which was a …