I have been acted Unity dev for years… And used C# with it.
About C++, I just know grammars barely.
So why I think about Unreal is… there is some cool marketplace assets.
And… mobile phone performance… I have been developed some card+board game (3d modeling background, hexa 3d maps, 3d character…) with Unity(project files 20~30 giga, build file 2~3 giga),
but at PC, its ok, but at phone… its almost not run… very slow.
So I started to think about Unreal… but I don’t know it at all. In this case, Unreal can be helpful? to solve above problem?
How much and how long the learning curve will be for learn Unreal and C++ and finally ready to start develop game?