It depends on which engine your using
Unity: is C# / java Script but most tutorials are in c# i think
I started to learn how to code with unity and would recommend since you can follow along with many tutorials.
Godot: custom language but relatively new and clunky (at least for me) poor 3d game support last time i checked
Game Maker: never used it but i heard its good to start out.
You can also make your own engine? I only tried to do this in java but it takes a lot of work would not recommend until you are
at least comfortable with making games.