Unity Mobile Adventure Game Prototype

I’m ready to turn a small, casual adventure concept into a playable slice that runs smoothly on both iOS and Android. I’ll provide reference games and a rough design document; what I need from you is a clean, scalable foundation in Unity that I can comfortably expand after delivery... (Budget: $15 - $25 USD, Jobs: Android, C# Programming, Game Design, Game Programming, iPhone, Mobile App Development, Unity, Unity 3D)