Designing a full-sized game for a five-inch screen is about smart choices, not...

https://www.bookmarkpage.win/designing-a-full-sized-game-for-a-five-inch-screen-isn-t-just-about-shrinking

Designing a full-sized game for a five-inch screen is about smart choices, not just shrinking everything. You focus on touch-first controls that feel natural in small spaces. Portrait mode often works better than landscape on phones