Hi there,
My professional background is unrelated to game development, but I have been doing it as a hobby for multiple years, now determined to turn it into a new career path. My personal interest is in startegy and puzzle games. The exact content of what I would be creating still remains undecided, but something that is potentially turn based and requires a lot of player interaction, co-operation and scheming is what I have in my mind.
As this is a very open-ended answer, upcoming difficulties are not yet clear to see, but since there is no direct support for turn-based puzzle/strategy game mode in UE, one obvious challenge would be creating logic for the game. However this can be seen as a strength as well, since if you create your game logic from scratch, you probably will have much better understanding of your game’s underlying mechanisms and you can better exploit this to your benefit to create a more engaging experience!