Unity Engine did displaced the existing market leader by offering a very permissive licensing scheme in comparison. And had already C# as the main programming l

Unity Engine did displaced the existing market leader by offering a very permissive licensing scheme in comparison. And had already C# as the main programming language, which is miles more accessible than C/C++ for any beginner. The features are slowly getting on par, but Unreal does offer numerous add-on to the engine to optimise the game (one that caught my eye was a world map analysis).