Getting Started With Unity is the best place to begin, and from there you can try beginner courses for both 2D and 3D that I'd recommend, and Beginner Scripting is a must.

This Black Friday bundle deal can get you started on both, with The Unreal & Unity Game Development for Beginners Bundle available for $9 (reg. $1,200) after you use the code BFSAVE70.

And in the fourteen years since Unity’s engine launched, the size of the global gaming market has exploded from $27 billion to $135 billion, driven by the rise of mobile gaming, which now ...