Hey HN! I was frustrated from not being able to make my own RPG
because level design is hard, so I built this 100% free tool
to explore hierarchical worldbuilding with AI. The key idea: every node in a scene graph can be expanded into its own detailed sub-graph, infinitely. Then Gemini's image model (Nano Banana) renders each level as actual artwork (you pick your style). Requires a GCP account for image rendering — I know it's friction, but Vertex AI was the only way to get reliable image generation. Feel free to use for your own projects or implement the concept better than I did. |