Unity 2D Puzzle Game Prototype

I’m building a casual 2D puzzle game for iOS and Android and need a rock-solid Unity project that I can expand on my own. The concept is light and approachable: a short core loop, three handcrafted stages, and a score-based progression system that unlocks each new level once a target score is reached. I’ll supply reference titles, rough level sketches, and a brief design document to guide you.

What I need from you is a clean, well-organised Unity project (C#) that compiles out of the box for both mobile platforms. Scenes should be set up with scalability in mind—one manager scene plus additive level scenes works well for me—so I can drop in new content later without refactoring. The UI can be simple but functional: start screen, level select, in-game HUD with score, pause, and end-of-level panels. Please stub in ad and IAP hooks (Unity Ads / Unity IAP placeholders are fine); no live monetisation needed yet, just the code architecture so I can wire services when ready.

Deliverables:
• Unity project folder (preferably 2021 LTS or newer) with three playable puzzle levels
• Modular, commented C# scripts covering game loop, score tracking, level loading, and basic audio handling
• Prefab-based UI that adapts to different screen ratios
• Scene structure that supports additive loading and easy expansion
• Placeholder methods for ads and in-app purchases, clearly marked
• A short README explaining project structure, key classes, and how to build to device

Once I import your project, I should be able to hit Build, install on both an iPhone and an Android test device, play through all three stages, and see the score progression unlock the next level. If that’s working smoothly and the codebase is tidy, the job is done.