Android Aviator Betting Game

I want to launch a private Aviator-style crash game that runs natively on Android and lets users wager real money through integrated payment methods (card, UPI, wallet, or any gateway you recommend that passes Google-Play policy by running outside their billing system).

Core expectations
• Smooth, lightweight Android client that mirrors the classic Aviator gameplay loop: rising multiplier, live cash-out button, instant results, round history, and a provably-fair logic.
• Secure back-end with player authentication, balance management, bet settlement, and an admin panel where I can adjust house edge, view live rounds, and handle payouts or disputes.
• End-to-end payment processing: deposit, withdrawal, and transaction logs, all encrypted and compliant with the relevant standards for handling financial data.
• Basic social elements (chat or emoji reactions) are welcome if they do not compromise performance.
• Source code, database schema, and a step-by-step deployment guide so I can host the back-end on my own server.

Acceptance criteria
1. Gameplay must stay within ±50 ms sync between client and server.
2. Hash-based fairness verification is exposed to users.
3. Successful test deposits/withdrawals in sandbox mode, then live mode.
4. APK installs cleanly on Android 8.0+ with no third-party store warnings.
5. Admin dashboard shows real-time profit/loss and user metrics.

If you prefer Unity, Unreal, Godot, or native Android with OpenGL, let me know—performance and security come first.