Developer
Headcannon
An American independent video game developer best known for its work on the Sonic the Hedgehog franchise, including Sonic Mania.
Action
About
Headcannon, founded by Simon Thomley, is a development studio specializing in 2D engine development and retro-style games. The studio co-developed the critically acclaimed 2017 title Sonic Mania and its expanded release Sonic Mania Plus. They are also known for their work on remastered ports of classic Sega Genesis titles in the Sonic the Hedgehog series.
The studio's integration into the Sonic the Hedgehog franchise grew through collaborative technical projects, including work associated with the mobile versions of Sonic & All-Stars Racing Transformed. This partnership with Sega laid the groundwork for the development of Sonic Mania, where the team focused on replicating the exact physics and momentum of the classic 16-bit titles.
This development cycle supported the 2017 release of Sonic Mania [Collector's Edition], a premium physical release that bundled the digital game with a deluxe Sega Genesis-themed statue and a metallic collector's card. To achieve the authentic feel required for both the standard release and the collector's package, the developers utilized specialized tools to emulate original hardware behaviors on modern platforms. This precise engineering ensured that Sonic Mania functioned as a faithful continuation of the original Sega Genesis trilogy, securing the studio's place in the history of the franchise.
Key People
Simon Thomley
Founder
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