Anniversaries/October 15
From Sega Retro
October 15 (add)
- 1988 - Ys: Ancient Ys Vanished Omen is released for the Sega Master System in Japan.
- 1992 - Special Criminal Investigation and Trivial Pursuit: Genus Edition are released for the Sega Master System alongside Chuck Rock for the Sega Game Gear in Europe.
- 1993 - Columns III: Taiketsu! Columns World is released for the Sega Mega Drive in Japan. Sega VirtuaLand opens to the public in the Luxor Las Vegas in the United States.
- 1994 - Bubsy II is released for the Sega Mega Drive alongside Mega Man: The Wily Wars for the Sega Channel service in North America.
- 1998 - Capcom Generation: Dai 3 Shuu Koko ni Rekishi Hajimaru and Sega Ages I Love Mickey Mouse: Fushigi no Oshiro Daibouken/I Love Donald Duck: Guruzia Ou no Hihou are released for the Sega Saturn in Japan.
- 1999 - Miffy Hajimete Deau Pasokon Soft 1: Seikatsu is released for Windows PCs and Mac OS in Japan. Dynamite Cop and Incoming are released for the Sega Dreamcast in Spain.
- 2002 - Phantasy Star Online Episode I & II Ultimate System x Story Hen, a book, is released in Japan. Sega GT 2002/Jet Set Radio Future is released for the Xbox in North America.
- 2003 - Blades of Glory is released for J-Sky (50KB) compatible phones through Sega's Pet * Sega portal alongside Tsuri Bass Nisshi for J-Sky (50KB) compatible phones through Sega's Pocket Works portal in Japan. Cyber Troopers Virtual-On: Marz is released for the PlayStation 2 in North America.
- 2004 - Super Monkey Ball 2 Pack is released for the Nintendo Gamecube in North America . OutRun 2 (Xbox) is released for the Xbox in Australia.
- 2010 - Sonic the Hedgehog 4 Episode I is released for the Wii's WiiWare service alongside Sega Mega Drive Classic Collection Volume 2 for Windows PCs in Europe.
- 2014 - Alien: Isolation is made available for digital download on the Xbox 360 in Europe and Australia.
- 2015 - 7th Dragon III Code: VFD is released for the Nintendo 3DS in Japan.
- 2020 - Armor of Heroes is released on Steam in Japan, North America, and Europe.
- 2021 - Demon Slayer -Kimetsu no Yaiba- The Hinokami Chronicles is released for the PlayStation 4, Xbox One, PlayStation 5, and on Steam in North America, Europe, and Australia.