Designing a full-sized game for a five-inch screen is all about focusing on...

https://sizedesk.com/what-happens-when-a-full-sized-game-has-to-fit-on-a-five-inch-screen/

Designing a full-sized game for a five-inch screen is all about focusing on what matters most. It’s not about shrinking everything down but making touch-first controls easy to use and choosing portrait or landscape to fit the experience