iMore's Serenity Caldwell and Luke Filipowicz put together a great Q&A with Team Alto to discuss the making of Alto's Odyssey.
Here's my favorite bit, which only adds to my love for this game:
One of the big breaks in the new game's theming came from the lives of Team Alto's members themselves. "Things really clicked when we reflected as a group on how much our lives had changed since the release of Alto's Adventure," wrote Cymet. "The team had grown, some of us had moved away from the homes we knew to live in other places, and we had all experienced big personal upheaval in different ways.
"What we arrived at was a desire to capture the feeling of going outside your comfort zone, exploring the unfamiliar, and accepting that the concept of 'home' is related to the people close to you, not any one place. In many ways, this is what led us to the grandeur of Alto's Odyssey's setting. This idea of a fantastical place far from what you know as home, where you learn to see the beauty in embracing the unknown."