I will consider it, but I think it’s a strange proposition.
I don’t know how much experience you have in the game development industry, but getting your game noticed is really difficult. As a starting game developer, it’s really hell to market your game. I can tell you by my own experience, when I released my earlier game Mystic Mine. But don’t take my word for it, see ‘Good’ isn’t good enough for example.
I thought about the commercial options some more, and I’m currently thinking about offering 3 things (in the far far future ;)):
1. A commercial license for established studios. At least 250 euros per game license. Theses are studios with an existing customer base, and are looking for a better/easier/faster tool to make their game. They will have full customization options for their game, and are independent on how and where they release it.
2. A publishing deal with me. This is for game designers that make a really awesome game in RPG Playground, but are new to the business and have no connections. I have connections with studios that sell RPG games. And since I will be marketing RPG games a lot, I can build up a customer base. I can take a smaller cut than traditional publishers because getting a game out there also promotes my own RPG Playground. But remark that you could also go with your own publisher with point 1.
3. Revenue sharing for those who don’t fit the above 2 categories. Basically risk free evaluation of the market. But your game will only be available on the RPG Playground platform itself (also available on mobile and consoles at that point, if we get that far ;)). Since there will be no contract or license at this point, you can always go to option 1. or 2. at any time. So I guess that covers your use case :).