As Fricker brought up earlier in this thread, I would suggest checking out SkookumScript UE4 plugin as an alternative to native C# in UE4
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Agog Labs Inc. is in the process of opening up SkookumScript to Public Beta, with their 1st step being to upload the Plugin publicly on GitHub: https://github.com/AgogLabs/SkookumScript-UnrealEngine
I would assume that access to their full forums, documentation, etc will be opened up to the public soon, if not already as well.
Entry level is free & you can run both their standard IDE (free) & premium IDE ($200 USD per-seat) alongside each other to save on costs & to get the full use out of bother versions based on who needs which IDE.
NOTE: You can build an entire game from start to finish with the standard IDE (free) if you so choose, so we are not looking at crippleware here.
Licensing details available here: http://skookumscript.com/about/pricing/
Local Forum Thread Found Here: Plug-in - C++ - Epic Developer Community Forums