My focus is on developing the back end infrastructure needed to run an MMO with UE4. My day job is designing the architecture for large web server / database systems, so this is what I have the most experience doing. I love MMO games! I am a recovering WoW addict and still enjoy playing table top RPG’s. I am trying to setup my server system to allow any type of game to be built as I can see how my tools could easily be used for launching matchmaking servers or instance servers for MOBA or space games like Star Citizen.
Right now I am planning on selling two kinds of licenses:
The Developer license will cost $50. This will allow you to get up and running right away without having to setup any expensive servers because I will generate an API key for you and you will use my hosted servers. I understand that most people will never publish their game, so this will allow hobbyists to use my system to build MMO’s for a small fee. Developer licenses can be converted to full licenses by paying the difference if and when you want to publish your game.
The full license will be around $100 and will include full source code and all of the server components needed to host your own system on your own servers. It will also grant you a license to release one game project to the public with the license. The price is really low considering that I have hundreds of hours of development into this, but I realize there isn’t really any money in this sort of thing and I am more interested in helping people get their MMO’s to launch 
I am also available for a small consulting fee to help you setup your server infrastructure when you go to release your game. I can also build you a custom launcher for your game as using UE4 to login (what I do in the demo project) will not scale well with thousands of users.
Thanks for the link to User Frosting. It looks interesting. I already have my own registration system and I am a Microsoft guy, so PHP isn’t really my thing either 