I have taken many stabs at it and Claude will produce stuff but the output is very far away from useful. E.g. "I've created a road and beautiful trees" and what I see is a mess of colors and shapes.
I concur it's bad at directly visual concepts, your prompt is akin to the svg pelican. What I do is asking him for procedural algos, automatas, quadtrees, layered noises, and rig those into the game. Yes, it can't "make the next gta", but with a reasonable scope and knowing what it does best, it has been very easy for me to produce satisfying results.
My problem is I don't really have video game engineering experience. I was going off a concept that a different AI nailed with video creation and was trying to replicate it in the game engine.
Sure! Two are gameplay pics. An enemy sprite sheet generation, and the results of the map generators. Of course these are basic placeholders for a few hours of work, but I will definitely go heavy on this route with more layering and details.