Who Is It? – Real-Time Multiplayer Mobile Game

Designed and built a real-time multiplayer guessing game for Android, from UI and character art to backend and Play Store release. Players join private games by code or get matched online, ask yes/no questions against a turn timer, chat live, and bet coins. Built with React and Capacitor, using Firebase Auth and Firestore for real-time sync, transactional matchmaking and security rules, plus Google Play Billing with RevenueCat for in-app purchases. Handled edge cases like disconnects, forfeits, rematches and duplicate joins.