The nature of Half-Life‘s cancellation makes it perhaps the most notorious unreleased game for the Dreamcast. While the core game was set to be released in late 2000, a special online-enabled version was also planned for early 2001, which would have included Team Fortress Classic The Dreamcast version would not make an official playable public appearance until the first annual Gearbox Community Day 2011 which featured the last completed build as part of their legacy showcase. Rather than being a straight port of the game, the Dreamcast version featured higher polygon models than its PC counterpart (about twice as many polygons overall) and would have included an exclusive side-story titled Half-Life: Blue Shift. Half-Life was demonstrated at the European Computer Trade Show in 2000, being praised by the press and featuring as a cover story in many gaming magazines of the era and even in a television advertisement. However, a last minute decision saw the game be cancelled, despite playable (and finished) builds being showcased at trade shows and in magazine publications. The game was due to be ported to the Sega Dreamcast by Gearbox Software in a move that was much anticpated by Sega fans. At the time of its release on PCs it was seen as groundbreaking, and still ranks as one of the highest rated PC games of all time. Half-Life is a first person shooter developed by Valve Corporation.

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