Anniversaries/September 20
From Sega Retro
September 20 (add)
- 1986 - The Sega OutRun hardware board is released in Arcades along with the game OutRun as well as Spy vs Spy for the Sega Master System in Japan. The Sega OutRun hardware board is released in North American Arcades along with the game OutRun.
- 1987 - Nazca '88 is released for the Sega Master System in Japan.
- 1991 - El Viento and Rent A Hero are released for the Sega Mega Drive in Japan.
- 1992 - Lunar: The Silver Star - Lunar no Sekai to Kouryaku Guide, a book, is released in Japan.
- 1994 - Melon Brains: Exploring The Mind Of The Dolphin is released for the Sega Mega LD in Japan.
- 1996 - Albert Odyssey Gaiden: Legend of Eldean Perfect Data Book, Fighting Vipers: Crimson Angel, and Policenauts Koushiki Guide, all books, are released alongside Destruction Derby, Kidou Senshi Gundam Gaiden I: Senritsu no Blue, Real Bout Garou Densetsu, Sega Ages OutRun, and the 1MB Extended RAM Cartridge accessory for the Sega Saturn, as well as World Series Baseball '96 for Windows PCs in Japan.
- 1999 - 727 luchshikh igr dlya televizionnykh videopristavok Sega, a book, is released in Russia.
- 2000 - Caesars Palace 2000: Millennium Gold Edition is released for the Sega Dreamcast in North America. Deep Fighter is released for the Sega Dreamcast in Germany.
- 2001 - Air and Boku no Tennis Jinsei are released for the Sega Dreamcast in Japan.
- 2002 - J.League Pro Soccer Club o Tsukurou! Advance Saikyou e no Fuseki, a book, is released alongside Eggman no Kazuate Panic!, Futari de Puyo Puyo, and Puyo Puyo Task Mode for i-mode 503i compatible phones through Sega's Sonic Cafe portal in Japan. Crazy Taxi 3: High Roller is released for the Xbox in Europe.
- 2006 - S.S.T. Band Live History, a DVD, is released alongside Jingi Storm: The Arcade for the Sega NAOMI GD-ROM board in Japan.
- 2007 - Oshare Majo Love and Berry: 2007 Autumn & Winter Song Collection, a CD, is released alongside Rhythm Tengoku for the Sega NAOMI board in Japan.
- 2012 - Ge-Sen Love: Plus Pengo! and Guilty Gear XX Accent Core Plus R are released in Japanese Arcades for the Sega RingEdge 2 board.
- 2013 - Fiete Match is released for iOS alongside Sonic & Sega All-Stars Racing for Android devices in North America and Europe.
- 2014 - Sega Ages 2500 Series Vol. 1: Phantasy Star Generation: 1 is released for the PlayStation 3 alongside Bayonetta 2 for the Wii U in Japan.
- 2016 - Shin Megami Tensei IV: Apocalypse is released for the Nintendo 3DS in North America.
- 2017 - Sonic Forces: Speed Battle is released for Android devices in North America, Europe, and Australia and for iOS in North America, and Europe.
- 2018 - Letsri Go!, a medal game, is released alongside Sega Ages Sonic the Hedgehog and Sega Ages Thunder Force IV for the Nintendo Switch in Japan. Sega Ages Sonic the Hedgehog and Sega Ages Thunder Force IV are released alongside Streets of Rage 2 being made available for the Sega Forever service for Android devices in North America, Europe, and Australia and for iOS in North America and Europe.
- 2019 - Moto Shachou ga Kataru! Sega Kateiyou Game-ki, a book, is released in Japan.