Sega Sonic Frontiers Video Game

Sonic Frontiers is a 2022 platform game developed by Sonic Team and published by Sega. As Sonic, the player explores the Starfall Islands to collect the Chaos Emeralds, after Sonic and his friends are separated when falling through a wormhole. Frontiers integrates traditional Sonic the Hedgehog elements—such as platforming, rings, and grind rails—into the series' first open world. While exploring the open world, players can complete challenges, fight robotic enemies, and access "Cyber Space" levels inspired by previous Sonic games.

Following the release of Sonic Forces (2017), Sonic Team began exploring approaches for its next game. Takashi Iizuka, head of Sonic Team, wanted Frontiers to be a model for future titles, 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 announced in December 2021.

Sonic Frontiers was released for the Nintendo Switch, PlayStation 4, PlayStation 5, Windows, Xbox One, and Xbox Series X/S on November 8, 2022. It received mixed reviews from critics, with praise given to the visuals and soundtrack but criticism for some technical issues; the controls and combat divided critics. The game was received more favorably by fans of the series. It was a commercial success, selling over 2.9 million copies by the end of December 2022.