Anniversaries/June 17
From Sega Retro
June 17 (add)
- 1991 - Advanced Daisenryaku: Deutsch Dengeki Sakusen is released for the Sega Mega Drive in Japan.
- 1994 - Shin Souseiki Ragnacenty is released for the Sega Mega Drive in Japan.
- 2000 - MDK 2 is released for the Sega Dreamcast in Australia.
- 2003 - Sonic Adventure DX: Director's Cut: Prima's Official Strategy Guide, a book, is released alongside the game it is for, Sonic Adventure DX: Director's Cut, for the Nintendo Gamecube in North America.
- 2004 - Pizzicato Polka: Ensa Genya is released for the Sega Dreamcast alongside Blades of Glory for EZweb (BREW 2.0) compatible phones through Sega's Pet * Sega portal, Fantasy Zone for EZweb (BREW 2.0) compatible phones through Sega's Sega Ages portal, and Sonic Advance 3 for the Game Boy Advance, all in Japan.
- 2008 - Sonic Reversi Hyper is released for Club Air-Edge compatible phones through Sega's Puyo Puyo! Sega portal in Japan. Sonic Underground: The Greatest Hits Volume 2, a CD, is released alongside Sonic Underground Vol. 2, a DVD, in North America.
- 2009 - DUX, an aftermarket Sega Dreamcast game, is released in Europe.
- 2014 - Napoleon: Total War is released for Mac OS X through Steam in North America and Europe.
- 2019 - Armed Seven and Magic Pockets, both aftermarket Sega Dreamcast games, are released in North America.
- 2020 - Shin Sakura Taisen the Animation Vol. 1 and Vol. 2, both DVDs and Blu-rays, are released in Japan. Sonic the Hedgehog DJ Style "Party", a CD, is released physically in Japan, made available to download from Amazon and iTunes, and made available to stream from the AWA, Kkbox, Line, Mora, and Recochoku streaming platforms in Japan while it is made available to download for Amazon and iTunes in North America and Europe, and for Spotify worldwide.