Does Unreal use C++?
Game engines such as Unreal Engine use C++ to create the game code. This code is then used to create the game graphics, sound, and gameplay. Lighting, animation, and physics are also often implemented in C++.
C++
Written in C++, the Unreal Engine features a high degree of portability, supporting a wide range of desktop, mobile, console and virtual reality platforms.
Unreal's C++ API is commonly considered as "halfway to the simplicity of scripting languages" – in the perspective of full-time programmers. It's still C++, the entry barrier is higher than any scripting language or C#.
No coding is necessary. Unreal Engine also supports writing logic using C++, but I recommend you start with the Blueprint system.
Both Unity and UnrealEngine utilize C++ in their source code: Unity is partially written using C++ and C#, whereas Unreal Engine is written in C++ entirely. C++ is widely used to develop high-tier game engines and critical service applications where optimal resource utilization and performance are a priority.