From Sonic Retro

Current owner(s): Stealth
Created on: Nov. 2012

Headcannon is a registered business entity founded and operated by independent software developer Stealth.


Prior to establishing Headcannon, Stealth had spent many years developing several video game and utility projects as a hobby.

In 2009, Stealth was approached by The Taxman and asked to aid in creating a pitch demo that eventually led to the 2011 re-release of Sonic CD. Stealth provided information gained and pseudo-code developed from reverse-engineering certain early gameplay elements, but wasn't involved in development once the project had officially begun.

After the re-release of Sonic CD, The Taxman had formed a better relationship with SEGA, and was therefore able to discuss bringing Stealth into the next project as a co-developer. Stealth registered Headcannon in November of 2012 in preparation, and after successful talks, the 2013 re-release of the original Sonic the Hedgehog for Android and iOS became the first game to be (co-)developed under the Headcannon name. This was immediately followed by the Android/iOS re-release of Sonic 2 in the same year.

The corresponding website was launched on March 9th of 2013, 18 days before Sonic 1 was revealed at the March 27th-29th GDC Expo, to establish presence in anticipation of the upcoming title, which was added to the site upon release on May 15th, 2013.

Corresponding with its June 16th release in 2014, one of Stealth's long-running projects, "Engine02" was re-branded as "Headcannon Game Engine" to reflect its high priority and its connection to the business and future projects.

Headcannon remains operational for future contracts and first-party projects.

First-party Projects

Contract Projects