macwhisperer is the Hacker News account that posted PolyRoll. The post says the game was made together with a friend who, the poster thinks, has little interest in developing it further; neither person's name is given.
A low-poly 3D marble game for phones and desktop with endless procedurally generated levels; the poster says Claude Code with Sonnet built it in about 6–8 hours of prompting after planning with Gemini Pro.