The story sees Sonic the Hedgehog joining a resistance force to stop Doctor Eggman, who has conquered the world alongside new villain Infinite. Produced in commemoration of the 25th anniversary of the Sonic the Hedgehog franchise, it was released for Microsoft Windows, Nintendo Switch, PlayStation 4, and Xbox One in November 2017. Sonic Forces is a 2017 platform video game developed by Sonic Team and published by Sega.