OpenGameBuilder: Describe a game in one sentence and generate it using a local LLM like Gemma 4.
Every pixel above is drawn by code. The whole world file is 551 bytes of JSON: a cherry bank, then paddies, people who wander, and a village of ten with a stone lane, shops, a shrine and a temple. A model can write a file like that from one sentence, and then it is a game you can play and download. What it is. A small game builder on top of a world engine. You pick a world and a kind of game (or describe a world in a sentence and let a model make it), press Play, and download the game as one HTML file that runs offline, drawn entirely in code with no image files. The demo comes with prebuilt worlds you can play in your browser right now (link under Demo). Who it is for. People who would like a living little world or game but cannot draw or animate: small game makers, teachers, anyone making a toy for a friend. And people building with small local models, who need a model's output to…
