Geminisland

About this game

Geminisland is a 3D voxel island that everyone builds together. Click a free spot, type what you want (a shop, a tower, a statue) or add a photo, and Gemini 4 Hydrogen turns it into a voxel structure on the island. Zoom out to see the whole island packed with roads, towers, cakes and giant fruit, or switch to walk mode and stroll the streets in first person, sit down inside buildings like a voxel library with bookshelves and armchairs, and jump to any spot on the map.

Google built it as the launch demo for Gemini 4 Hydrogen, its fast coding model released on 12 November 2026, to show the model "turning natural language into working, interactive code in seconds". It runs inside Google AI Studio, so the first time you need to sign in with a Google account and accept AI Studio's terms.

On X

Google AI

@GoogleAI · Nov 12

Beyond knowledge work, Hydrogen brings that same speed and first-pass accuracy to live coding by turning natural language into working, interactive code in seconds. See it in action in Geminisland, a demo game where users can prompt to build new 3D voxel structures with Hydrogen

1:30

2 62