Sonic Forces is being developed by Sonic Team, the same team that had previously developed Sonic Colors and Sonic Generations, with development headed by longtime Sonic series producer Takashi Iizuka. Development on the title began in 2013, shortly after the completion of Sonic Lost World. Sonic Forces will run on the “Hedgehog Engine 2”, a refined version of the game engine used in Sonic Unleashed and Sonic Generations. The game’s soundtrack is being composed by series sound director, Tomoya Ohtani.
The game was announced under the codename “Project Sonic 2017” alongside Sonic Mania during a Sonic 25th Anniversary event held by Sega at San Diego Comic-Con on July 22, 2016.The presence of both Classic and Modern Sonic in the initial teaser trailer led some journalists to believe it was a sequel to Sonic Generations, but Iizuka later clarified that it was a separate title and not a sequel. The game is scheduled for release on Microsoft Windows, Nintendo Switch, PlayStation 4, and Xbox One in late 2017.