How do I make a torch like light

Hi Guys,

Does anyone know how to make a torch like feature ?

I want everywhere be dark in the game and provide light like this image .

Does anyone know how?

This is the first thing that came to my mind - https://www.dropbox.com/s/sfa3skfjj8qe9 ... .capx?dl=0 Run it and move the mouse around the canvas. Could be improved for whatever your specific case is.