Anniversaries/September 4
From Sega Retro
September 4 (add)
- 1989 - Tectoy releases the Sega Master System alongside the Óculos 3D and Pistola Light Phaser accessories in Brazil which would become one of the most popular systems in the country's history.
- 1996 - Alien Trilogy, Iron Man/X-O Manowar in Heavy Metal, and Skeleton Warriors are released for the Sega Saturn in Europe.
- 1997 - Virus Hyper Complete, a book, is released alongside Elf o Karu Monotachi: Hanafuda Hen for the Sega Saturn in Japan.
- 2002 - Virtua Fighter 4 Evolution Original Sound Tracks, a CD, is released in Japan.
- 2003 - Rent A Hero No.1 is released for the Xbox in Japan.
- 2007 - Golden Axe III is released for the Wii Virtual Console in Japan.
- 2008 - ChuChu Rocket! is released for EZweb (BREW 3.1) compatible phones through Sega's Puyo Puyo! Sega portal in Japan. Dinosaur King is released for the Nintendo DS in Australia.
- 2012 - The House of the Dead: Overkill Extended Cut is made available for digital download on the PlayStation Store in North America.
- 2013 - Mickey Mouse Castle of Illusion is released for the Xbox 360 and PlayStation 3 alongside Shining Blade & Ark Visual Settei Shiryoushuu for the PlayStation 3's PlayView app in Japan. Castle of Illusion Starring Mickey Mouse is released for the Xbox 360's Xbox Live Arcade service in North America. Castle of Illusion Starring Mickey Mouse is released for the Xbox 360 alongside Hatsune Miku: Project DIVA F for the PlayStation 3 in Europe. Adventures of Sonic the Hedgehog Collector's Set, a DVD, is released alongside Castle of Illusion Starring Mickey Mouse for the Xbox 360 and PlayStation 3 and Hatsune Miku: Project DIVA F for the PlayStation 3 in Australia. Castle of Illusion Starring Mickey Mouse is released for the Xbox 360 and PlayStation 3 in South Korea and Taiwan.
- 2014 - The Very Best of Sega is made available to download from Amazon in Japan. The Very Best of Sega is made available to download from Amazon alongside Super Monkey Ball Bounce for iOS in North America and Europe.
- 2017 - L'Abbaye des Morts, an aftermarket Sega Mega Drive game, is made available to order from the PlayOnRetro website.
- 2018 - Sonic the Hedgehog Volume 1: Fallout!, a book, is released in the United Kingdom.