GAMESLASHGoogle demos Gemini 4 Carbon /swarm building a 3D game in Blender and Three.js
By GameSlash
The November 10 Carbon rollout includes Pelican Quest, a browser 3D game made by coordinated agents working on Blender assets, Three.js, shaders and sound.
On November 10, 2026, Google broadened access to Gemini 4 Carbon and previewed /swarm in Google Antigravity. The game-development example is Pelican Quest, a 3D browser game where a pelican cycles around Google's Mountain View campus on a GBike. Google links a live demo. This is Google's own showcase, not an independent GameSlash playtest. Official announcement
What each agent does
Google says Carbon coordinates specialized subagents: agents model and rig 3D assets in Blender using Gemini Omni and Nano Banana references, while others implement the browser game in Three.js with WebGL shaders. The demo combines procedural Web Audio effects with a Lyria soundtrack. Google's post claims 60 FPS, which GameSlash has not independently measured. Google's description
For game creators the useful workflow is to separate 3D asset production, executable game logic and verification rather than delegate everything to one unreviewed agent. Google has not released a complete reproducible repository, and a single prompt does not guarantee a production-ready game.
Access and limitations
The Pelican Quest demo is linked through Google AI Studio, though sign-in and account access may be required. Carbon is available via the paid Gemini API and rolling out in Antigravity to Google AI Ultra subscribers; /swarm is a preview. Introductory API pricing is US$2 per million input tokens and US$10 per million output tokens through November 30, 2026, changing to US$4 and US$20 afterward. Official pricing and availability
The main development milestone is the integrated pipeline across 3D assets, game code, shaders and sound. Verify the resulting code, asset rights, runtime performance and export workflow before adopting the approach.