I built a web game where you guess drive time between cities using live traffic. You get scored by accuracy (exponential decay—from ~1000 for a perfect guess), and there are solo and private match modes with leaderboards and detailed stats.

Try it: https://etaguesser.com/

Tech: React + TypeScript, Supabase, Mapbox GL w/ live traffic. Happy to answer anything—game math, anti-cheat, or traffic quirks.