Anniversaries/December 31
From Sega Retro
December 31: New Year's Eve (add)
- 1993 - Mega Drive Mega CD All Soft Catalogue, a book, is released in Japan.
- 1995 - Virtual Bart and WWF Raw are released for the Sega Mega Drive in Japan.
- 1996 - The King of Fighters '96 and The King of Fighters '96 + '95: Gentei KOF Double Pack are released for the Sega Saturn in Japan. Powerslave is released for the Sega Saturn in North America.
- 1997 - BattleSport is released for the Sega Saturn in North America.
- 2000 - Dennou Senki Virtual-On Oratorio Tangram Shinjitsu no Tama, a book, is released in Japan.
- 2002 - NCAA College Basketball 2K3 is released for the PlayStation 2 in North America.
- 2007 - Kodai Ouja Kyouryuu King: 7-tsu no Kakera Saikyou Kouryaku Guide Joukan, a book, is released in Japan. Light Crusader is released for the Wii Virtual Console in North America.
- 2015 - The MD Compact, an unlicensed Sega Mega Drive clone console, is released in Japan.
- 2019 - Sonic the Hedgehog Volume 3: Battle For Angel Island, a book, is released in the United Kingdom.