As an experienced dev but who hasn’t done any game dev since my teenage years (I’m 40 now), I can say that getting anything that meets my standard for “this is worth showing to anyone” is really high and I’ve spent dozens of hours working on a few games and don’t really like any of them yet. But it’s been a lot of fun. The open models and an RTX 5090 can crank out models that are good enough that Astra can clean them up in Blender and get you a pretty good asset pipeline. But good looking assets do not a fun game make. That requires a lot of patience and small tweaks to get something that feels fun. But if you want a full 3D game with ray tracing and beautiful HDR visuals and particle effects, that stuff is easy.