Anniversaries/December 21
From Sega Retro
December 21 (add)
- 1986 - Sega Game Music Vol. 1, a vinyl album and Compact Cassette, is released alongside Space Harrier for the Sega Master System in Japan.
- 1987 - Sega Taikan Game Special, a Compact Cassette and CD, is released alongside After Burner / Super Hang-On, a LaserDisc, in Japan.
- 1988 - Galaxy Force, a VHS and LaserDisc, is released in Japan.
- 1989 - The Super Shinobi & Works, a Compact Cassette and CD, is released in Japan.
- 1990 - Hard Drivin', Musha Aleste: Fullmetal Fighter Ellinor, and Star Cruiser are released for the Sega Mega Drive alongside OutRun for the PC Engine in Japan.
- 1994 - Virtua Fighter "Sega Saturn" Image by B-univ Neo Rising, a CD, is released in Japan.
- 1995 - Virtua Cop Official Guide Book, a book, is released alongside QuoVadis for the Sega Saturn in Japan.
- 1996 - Riglordsaga 2 Original Soundtrack, a CD, is released alongside CGMV Special Virtua Fighter 3: Geki no Shou "Battle", CGMV Special Virtua Fighter 3: Shippuu no Shou "System", and Virtua Fighter 3, all VHS, and Fighters Megamix for the Sega Saturn in Japan.
- 1998 - Noël 3 Perfect Guide and Sakura Taisen: Ouka Kenran OVA Fan Book Gekan, both books, are released in Japan.
- 1999 - Prima's Official Strategy Guide: Sega Dreamcast Collection, a book, is released in North America.
- 2000 - Tantei Shinshi Dash! Koushiki Kouryaku Guide, a book, is released alongside Crackin' DJ Remix and Fantasyscape Slashout: Original Soundtrack, both CDs, Sakura Taisen: Gouka Kenran Chapter 6, a DVD, Bakumatsu Rouman Dai Ni Maku: Gekka no Kenshi Final Edition, Bass Rush Dream: EcoGear PowerWorm Championship, Daytona USA 2001, Gunspike, Never 7: The End of Infinity, Phantasy Star Online, Saka Tsuku Tokudaigou: J.League Pro Soccer Club o Tsukurou!, Sonic Adventure 2: The Trial, Sonic Shuffle, and Tantei Shinshi Dash! for the Sega Dreamcast, and Icewind Dale for Windows PCs in Japan. Resident Evil 3: Nemesis is released for the Sega Dreamcast in Germany. Star Wars Demolition and Tomb Raider: Chronicles are released for the Sega Dreamcast in Spain.
- 2001 - Dennou Senki Virtual-On Force Official Sound Data Ver 7.5, a CD, is released alongside Shenmue: The Movie, a VHS and DVD, in Japan.
- 2002 - Panzer Dragoon Orta Original Soundtrack, a CD, is released in Japan.
- 2004 - OutRun 2 SP is released in Arcades for the Sega Chihiro board alongside the MD 8bit Converter Sega Mega Drive accessory in Japan.
- 2005 - The House of the Dead 4 is released in Japanese Arcades for the Sega Lindbergh board.
- 2006 - Sangokushi Taisen 2 Zenkoku Taikai DVD Hagyou e no Michi: Ryuuko no Houkou, a DVD, is released alongside Sonic the Hedgehog for the Xbox 360 and PlayStation 3, Taisen Puyo Puyo Tsuu for EZweb (BREW 3.1) compatible phones through Sega's Sega Ages portal, and Football Manager 2007 for Windows PCs and Mac OS X in Japan. Ryu ga Gotoku 2 is released for the PlayStation 2 in South Korea.
- 2010 - Fast Striker, an aftermarket Sega Dreamcast game, is released in Europe.
- 2011 - 7th Dragon 2020 Original Sound Track, Sakura Taisen Revue in Little Lip Theater IV, and Sega Sound Unit (H.) 1st Album, all CDs, are released physically alongside Sonic the Hedgehog CD Original Soundtrack 20th Anniversary Edition, Sonic Adventure Original Soundtrack 20th Anniversary Edition, Sonic Adventure 2 Original Soundtrack 20th Anniversary Edition, and Sonic Heroes Original Soundtrack 20th Anniversary Edition being made available for download from Amazon and the Mora streaming platform, Sega Sound Unit (H.) 1st Album and The Works being made available for download from iTunes, and The Best of Crush 40: Super Sonic Songs for the Mora streaming platform, all in Japan. Sega Sound Unit (H.) 1st Album and The Works are made available for download from iTunes alongside Sonic the Hedgehog 4 Episode I being released for the iPad in North America. Sega Sound Unit (H.) 1st Album and The Works are made available for download from iTunes in Europe. Sonic the Hedgehog CD is released for the PlayStation 3 in South Korea and Taiwan.
- 2012 - Sonic Jump is released for Android devices in North America, Europe, and Australia.
- 2013 - WCCF Cup Winner's Cup The 8th Perfect Report, a book, is released in Japan.
- 2015 - 15th Anniversary Phantasy Star Online Visual Chronicles, a book, is released in Japan.
- 2016 - Sangokushi Taisen is released in Japanese Arcades for the Nu 2 board.