Billion-Point Puzzle Game

I want to turn my “1000000000 point” idea into a fun mobile puzzle game. The goal is pure game development: a playable Android and iOS title that challenges players to rack up an almost-impossible billion-point score.

Here is the scope I’m after:
• Core gameplay loop for an engaging puzzle mechanic that scales in difficulty.
• Clean, touch-friendly UI/UX with intuitive onboarding.
• Level progression, scoring system, basic particle effects, and satisfying audio cues.
• Global leaderboard so users can compare high scores and watch their climb to 1,000,000,000 points.
• Ad integration (rewarded video and interstitial) plus a simple in-app-purchase to remove ads.
• Analytics hooks (Firebase or similar) to track retention and session length.
• Deliverables: compiled builds (APK + iOS TestFlight) and full editable source code, preferably in Unity.

I’m happy to supply rough sketches and theme ideas; artwork can start with placeholder assets as long as files are structured for future reskinning. Code needs to be clean and commented so I can continue iterating after launch.

Please outline your approach, estimated timeline, and any puzzle games you’ve built before.