Introduction
Codemble is a learning game that turns the code AI wrote for you into a galaxy you light up by understanding it.
The problem
Section titled “The problem”People increasingly learn to code by building with AI agents — Claude Code, Codex — and end up with working apps they don’t understand. They can’t debug them, extend them, or explain them. Existing tools explain at you: passive tours, generated summaries. None of them make you prove you understood, and none teach the language as it appears in your own code.
The idea
Section titled “The idea”Point Codemble at your project. It parses your code into a real structural graph — no guessing — and gives you two ways to look at that one graph: a 3D galaxy where modules are star systems, functions are planets and your entrypoint is Home, and a flat Map that lays out architecture and workflow as a diagram. Every module is drawn, coloured and named from the first frame. In free exploration the whole galaxy stays visibly alive; amber remains absent until a check proves understanding.
You explore and ask Codemble to follow parser-owned evidence from Home toward the structure you selected. The journey stops at a visible proof break whenever Home, complete source, a certain bridge, or an application surface is not proven; any possible frontier stays separate. You can also see what a change would reach, read explanations grounded in your actual source, learn the language idioms your code uses, and pass short checks whose answers come from the code’s real structure. Each region you truly understand lights up — permanently. The goal state is a fully lit galaxy.
Travelling counts for something too, but for something smaller: flying to a system charts it and keeps its routes drawn, and the star chart records how many you have explored. That is a record of where you have been, never a claim about what you understood — only a passed check makes that claim.
Who it’s for
Section titled “Who it’s for”Early and intermediate coders who built something with AI and want to actually own it. Everything runs locally on your machine. Prose explanations are the one optional extra: bring your own Claude or OpenAI key, or run a local model through Ollama and send nothing anywhere.