From Sega Retro
January 20 (
- 1987 - Dunk Shot is released in Japanese Arcades for the Sega System 16B board.
- 1989 - The books Fantasy Zone II Kanpeki Hon and Sega-Game Daisakusen Part 3 are released in Japan.
- 1994 - Phantasy Star: Sennenki no Owari ni Game Guide Book, a book, is released in Japan.
- 1995 - In Japan Dragon Slayer: Eiyuu Densetsu II is released for the Sega Mega Drive while Victory Goal is released for the Sega Saturn.
- 1997 - Pinball Graffiti Playable Demonstration Disk is released for the Sega Saturn in the United Kingdom. The Incredible Hulk: The Pantheon Saga is released for the Sega Saturn in North America.
- 1999 - The CDs Club Sega 2: Beat Grooves, Mograpper, and Sonic Adventure "Digi-LOG Conversation" Original Sound Track are released in Japan.
- 2000 - Prima's Official Strategy Guide: Zombie Revenge, a book, is released in North America. In Japan, the DC Densha de Go! Controller is released alongside the game it is used for, Densha de Go! 2: Kousoku-hen 3000 Bandai as well as Aero Dancing Todoroki Taichou no Himitsu Disc, Nanatsu no Hikan: Senritsu no Bishou, NFL 2K, and Rainbow Cotton.
- 2001 - Shakatto Tambourine! Motto Norinori Shinkyoku Tsuika!! is released in Japanese Arcades for the Sega NAOMI GD-ROM board while Shenmue: The Movie premieres in Japanese cinemas.
- 2003 - Sakura Senryuu is released for i-mode 503i compatible devices in Japan.
- 2011 - Kingdom Conquest is released for iOS in Japan. The Sega Mega Drive version of Virtua Fighter 2 is released for iOS in North America and Europe.
- 2015 - The Art of Total War, a book, is released in North America while Citizens of Earth releases in North America for the Nintendo 3DS, PlayStation Vita, Wii U, PlayStation 4 and worldwide on Steam.
- 2016 - The DVD and Blu-Ray versions of the movie Persona 3 The Movie: No. 3: Falling Down are released in Japan.