Sonic Frontiers is a 2022 platform game developed by Sonic Team and published by Sega. As Sonic the Hedgehog, the player explores the mysterious Starfall Islands to collect the Chaos Emeralds after Sonic and his friends are separated when falling through a wormhole. Frontiers integrates platforming and traditional Sonic elements—such as rings and grind rails—into the series' first open world, where the player solves puzzles and beats challenges to collect items and fight against robotic enemies and colossal Titans.

Development began after the release of Sonic Forces (2017). Sonic Team head Takashi Iizuka wanted Frontiers to set a new template for Sonic games to follow, as Sonic Adventure had done in 1998. Sonic Team settled on an open-ended design and focused on adapting Sonic's abilities to an open world. Frontiers was released on Nintendo Switch, PlayStation 4, PlayStation 5, Windows, Xbox One, and Xbox Series X/S on November 8, 2022. Sonic Frontiers received generally mixed reviews; critics praised the open world and story, but found the gameplay repetitive. Reviews from players were more positive.



---- Source: https://en.wikipedia.org/wiki/Sonic_Frontiers