Develop Mobile Game App -- 2

I want to turn my game idea into a fully-featured mobile application. The end goal is a polished, playable game that can be submitted to the major app stores.

Here’s what I have in mind:
• Core concept and basic mechanics are sketched out, but I’m open to your creative input on art style, level design, and monetisation.
• Code must be clean and maintainable, using a mainstream engine such as Unity or Unreal so future updates are straightforward.
• The final build should run smoothly on at least one platform—Android, iOS, or both—depending on what you recommend for the scope and budget.
• I’ll need source files, store-ready builds, and brief documentation that explains how to compile, deploy, and adjust basic settings.

If you have a portfolio of mobile games, especially ones that shipped to Google Play or the App Store, please share links so I can see your style and performance standards. Looking forward to collaborating on something fun and engaging!