We make our games with a app called unity, unity is a special app because its a game engine. Also a little fun fact, this game company made 2 fangames from Gorilla tag by Another Axiom. And Unity is the easiest game making company ever if you learn how to use it. Unity has a game making app they made for mobile phones called strucked, it is very simple! that is all for Unity.
Unreal Engine
Unreal engine is a way you can make realistic games and could make a VR game.