Anniversaries/September 12
From Sega Retro
September 12 (add)
- 1991 - Streets of Rage is released for the Sega Mega Drive in North America.
- 1996 - NBA Action is released for the Sega Saturn in Europe.
- 2000 - NFL Blitz 2001 is released for the Sega Dreamcast in North America.
- 2001 - Heavy Metal Geomatrix is released for the Sega Dreamcast in North America.
- 2002 - Sega GT 2002 Perfect Guide, a book, is released alongside Pandora no Yume for the Sega Dreamcast, 18 Wheeler: American Pro Trucker and Phantasy Star Online Episode I & II for the Nintendo Gamecube, Sega GT 2002 for the Xbox, and Phantasy Star Online Episode I & II Character Timer for i-mode 503i compatible phones through Sega's Sonic Cafe portal in Japan.
- 2003 - Kiki & Lala: Hoshi no Kazu Asobi is released for the Sega Pico in Japan.
- 2007 - Sonic the Hedgehog 2 is released for the Xbox 360 alongside Gateball de Asobou! for Vodafone Live! (256KB) compatible phones through Sega's Sonic Cafe portal, as well as Puyo Puyo~n & Columns for Vodafone Live! (256KB) compatible phones through Sega's Sega Ages portal in Japan. Sonic the Hedgehog 2 is released for the Xbox 360's Xbox Live Arcade service in North America, Europe, Australia, South Korea, and Taiwan.
- 2010 - The Arcade Master, a console on a chip by AtGames, is released in North America.
- 2011 - Puyo Puyo Tsuu is released for Android devices through Sega's Puyo Puyo! Sega portal in Japan.
- 2012 - Border Break Original Sound Track and Border Break Airburst Original Soundtrack are made available to download from iTunes in Japan. Border Break Original Sound Track is made available to download from iTunes in North America, and Europe.
- 2013 - Go Dance is released for iOS alongside Sonic Generations being made available for digital download on the Nintendo eShop in Europe. Dead or Alive 5 Ultimate is released for the PlayStation 3 in South Korea. Go Dance is released for iOS in Japan and North America.
- 2016 - World Chain is released for Android devices in Japan, North America, and Europe and for iOS in Japan.
- 2022 - Sonic Frontiers - Main Theme EP is made available to download from the Mora streaming platform in Japan and Spotify streaming platform worldwide.