Anniversaries/December 24
From Sega Retro
December 24: Christmas Eve (add)
- 1988 - The so bad that it's good Osomatsu-kun Hachamecha Gekijou is released for the Sega Mega Drive in Japan.
- 1993 - Battle Mania Daiginjou is released for the Sega Mega Drive in Japan.
- 1994 - Sonic & Knuckles Official Game Book, a book, is released in North America.
- 1996 - Crusader: No Remorse is released for the Sega Saturn in North America.
- 1997 - Sonic R Official Guide, a book, is released in Japan.
- 1998 - Chouzetsu Kakutouou Segata Sanshiro Monogatari, a book, is released in Japan.
- 1999 - Dennou Senki Virtual-On Oratorio Tangram Perfect Guide: Weapon & Technique Hen, a book, is released alongside Shenmue JukeBox, a CD, and Dorimaga GD Vol. 4 for the Sega Dreamcast in Japan. Fighting Force 2 and Marvel vs. Capcom: Clash of Super Heroes are released for the Sega Dreamcast in Europe.
- 2002 - Sakura Taisen Joukikoushou, a book, is released alongside Monkey Ball for EZweb (Java Phase 2/2.5) compatible phones through Sega's Sega Ages portal and Pyramid Magic for i-mode 503i compatible phones through Sega's Sonic Cafe portal in Japan.
- 2004 - Kimi no Tame nara Shineru Rub-Love Daisakusen CD+, a CD, is released alongside Puyo Puyo Fever for the Nintendo DS and PlayStation Portable in Japan.
- 2005 - Puyo Puyo Fever 2 is released for the Nintendo DS in Japan.
- 2007 - Rolling Thunder 2 is released for the Wii Virtual Console in North America.
- 2008 - The Sega Master System version of Wonder Boy: Monster Land is released for the Wii Virtual Console alongside Dennou Senki Virtual-On for i-mode 90x compatible phones through Sega's Puyo Puyo! Sega portal in Japan. Voyny Sakury 2 is released for Windows PCs in Russia.
- 2010 - Chou Jigen Game: Neptune is released for the PlayStation 3 in South Korea.
- 2013 - Dead or Alive 5 Ultimate: Arcade is released in Japanese Arcades for the Sega RingEdge 2 board.
- 2014 - Phantasy Star Online 2 Original Sound Tracks Vol. 3 and Sakura Taisen New York Hoshigumi Show 2014: O Tanoshimi wa Korekarada, a CD for the stage play of the same name, both CDs, are released in Japan.
- 2016 - Cascade and Magic Girl, both aftermarket Sega Mega Drive games, are released in North America. Persona 4: Dancing All Night is released for the PlayStation Vita in South Korea and Taiwan.
- 2019 - Meet Sonic!: A Sonic the Hedgehog Storybook, Sonic & Friends Sticker Activity Book, and Sonic the Hedgehog: The Official Movie Mad Libs, all books, are released in North America.
- 2020 - Aleste Collection is released for the PlayStation 4 and Nintendo Switch, and with it the White Game Gear Micro, which contains GG Aleste 3 for the Sega Game Gear in Japan.