GPT-6 Astra and Higgsfield Build and Launch a Racing Game on Steam Deck

OpenAI's GPT-6 Astra and Higgsfield have demonstrated an end-to-end build in which a racing game was created on a Steam Deck and then launched on that same handheld. The result is a proof-of-concept for agentic game development, but it remains a product demonstration rather than an independently measured commercial release.