I put out a small card game demo a while back using Midjourney assets for most of my art. The tech has wildly improved since then (this was ~v2 and we're about

I put out a small card game demo a while back using Midjourney assets for most of my art. The tech has wildly improved since then (this was ~v2 and we're about to see v5, Stable Diffusion is out now and actually good, and many companies are starting up specifically to provide AI assets to game developers), so I would imagine you could get pretty far without an artist now. At the very least, you can definitely produce a good-looking demo with enough reference material to hand off to an artist before a final release. Feel free to hit me up via email (profile) if you aren't familiar with the tech; if you're on Discord or something I'm usually around to give some tips & pointers when indie devs have questions. :)