Lot of people say that they like a lighting effect in my game Soul Traveller.

So I'd like to show you, how it can be made in Godot engine. It's really easy.

1) Let's create a light sprite first:

You can make a different shapes, for example you can draw a circular sector as a field of view for some stealth game etc...

2) To cast shadows, you need to have LightOccluder2D on everything which is not transparent. In case of my game I just added light occluder to a wall tile. Since I have only one wall tile it's pretty easy. Export the tileset and use it in the tilemap.

3) And the last thing, you have to add node Light2D and set Texture to light sprite. Then turn on the shadows, which you can do by checking an attribute of Light2D. There are few more settings, but in my game it's just this. I've inserted Light2D as a child node of Camera2D which is child of the player, so the light moves with the current player.

And that's basically it! Really nice effect for a few minutes of work, isn't it?

If you never tried Godot engine, give it a chance. It's free and it's great (at least for 2D games - I never made any 3D game so I cannot judge this part).