In spite of how little Sonic Team and Sega have revealed about Sonic Frontiers, it shows a lot of promise. Although it's reportedly not a fully open-world game, its "open zone" approach should give players more freedom in navigating the world than most Sonic the Hedgehog games. In Sonic Frontiers, players might find themselves running freely through scorching deserts, dense forests, muddy marshes, and more, all while exploring the Starfall Islands' network of mysterious ruins. A semi-open world will go a long way in helping players experience the true extent of Sonic's speed, even if the world is divided into a few separate zones.