Anniversaries/October 4
From Sega Retro
October 4 (add)
- 1994 - Tails and the Music Maker is released for the Sega Pico in North America.
- 1996 - Shinjuku Joypolis opens to the public with the debut of the Mid-size attraction Murder Lodge and the Large attractions Sega Rally Special Stage for the Sega Model 2 board, Shocking Maze, and Super Ranking alongside Eternal Melody, Game-Ware Vol. 3, Heiwa Pachinko Soushingeki, Mahjong Taikai II Special, TurfWind '96: Take Yutaka Kyousouba Ikusei Game, Actua Soccer, and Winning Post 2 Program '96 for the Sega Saturn in Japan. NHL 97 is released for the Sega Mega Drive alongside Night Warriors: Darkstalkers' Revenge for the Sega Saturn in Europe.
- 1999 - The Sega Dreamcast is released in Brazil.
- 2000 - Disney/Pixar's Buzz Lightyear of Star Command and Street Fighter III: 3rd Strike are released for the Sega Dreamcast in North America.
- 2001 - Pachinko no Dendou CR Nanashi is released for the Sega Dreamcast in Japan.
- 2003 - Akihabara GiGO is opened.
- 2005 - Shining Force Chronicle II is released for i-mode 90x compatible phones through Sega's Game Parade portal in Japan. Prima Official Game Guide: Rome Total War: Barbarian Invasion, a book, is released in North America.
- 2007 - Woody Pop is released for EZweb (BREW 3.1) compatible phones through Sega's Sega Ages portal in Japan.
- 2012- NiGHTS into Dreams and Sonic Adventure 2 is released for the PlayStation 3 alongside Zaxxon Escape for Android devices and iOS in Japan. Zaxxon Escape is released for Android devices and iOS in North America and Europe. Sonic Adventure 2 is released for the PlayStation 3 in South Korea and Taiwan.
- 2014 - Super Smash Bros. for Nintendo 3DS is released for the Nintendo 3DS in Australia.
- 2017 - Episodes 53-78 of Sonic X are uploaded to YouTube for free from TMS Entertainment in English worldwide.
- 2019 - The Mega Drive Mini is released in Europe and South Africa alongside Darius, a new game, of which it is a part of.