I am Snowstorm Studios.
What is the best game engine to use? Unity did not work, I don't know how to use Godot, and I have no idea what to do for Unreal.
Also I don't know real programming languages.

Prototypes for official games. I don't yet have the resources to make them professionally.
If you could recommend something:
-easy to learn
-open source
-free
-small file size
that would be great! :)