@Sergius , I have mainly done 2D stuff so far, although I'm not a pro at Godot yet. Still, I do have a couple W.I.P.s that I've been working on. While I will have to get these W.I.P.s finished finished, I could help.
I have no videos of the WIPs, but here's the one I've worked the most on. It's a top-down shooter with third-person mechanics, and features wandering zombies that roam and detect the player.
https://godotforums.org/discussion/29952/w-i-p-zombie-world#latest
(By third person mechanics, the player can rotate, strafe, and move forwards and backwards, and the attacks are done with a set of rotating area2Ds instead of animations. Movement in all diagonals are normalized. Enemies are also able to make these movements, although I still haven't implemented them moving away from obstacles. I may not do so anyways, as they usually attack anything that isn't a tree, which they simply slip past as the trees' collision shapes are circles.)
My other W.I.P. is not much to look at right now, but I only started it yesterday. :)
And, @Tomcat, that artwork is amazing!