Hey,
As of yet, there is no export option, so it’s also impossible to sell your game. So the question is probably what will be possible in the future?
All assets can be used commercially. Some need credit, but that will be part of the export function. There are no detailed plans yet on how I will support commercial projects, but let me give you my ideal solution.
For game development studios, it will be possible to license the source code of the game. This means that ‘anything goes’ for releasing your own game based on RPG Playground.
If you don’t have any programmers (or can’t program yourself), it will be possible to export an RPG Playground game to various platforms, and sell it.
But remark that these are things for the far future, first I need to add functionality for my existing users (combat, etc.).
Also remark that what will be available for game dev studios, will highly depend on what the needs will be for them. I listen to my users now, and I will definitely listen to people that approach me for commercial releases. Then we can see how we can help each other out. But making commercial games is definitely in the back of my mind.
Hope this answers your question.