From Sega Retro
September 7 (
- 1990 - Insector X, Klax, and Space Invaders 90 are released for the Sega Mega Drive in Japan.
- 1994 - Symphonic Suite the Another Story of Shining Force, a CD, is released in Japan.
- 1995 - Batman Forever is released for the Sega Mega Drive and Sega Game Gear in North America.
- 1996 - SegaWorld London, the first indoor theme park opened by Sega outside of Japan, opens with the debut of the Large attractions Aqua Nova, Beast In Darkness, Ghost Hunters, Mad Bazooka, Space Mission and the VR-1 in the United Kingdom.
- 1998 - Sakura Taisen 2 Kouryaku Guide Book: Ten no Maki, a book, is released in Japan.
- 1999 - Sonic the Hedgehog: The Movie, a VHS, is released alongside Airforce Delta and TNN Motorsports Hardcore Heat for the Sega Dreamcast in North America.
- 2000 - Hidden & Dangerous is released for the Sega Dreamcast in France. Dream On Volume 13 is released for the Sega Dreamcast in the United Kingdom.
- 2001 - Gundam Battle Online Complete Guide, a book, is released in Japan.
- 2004 - The Fukkokuban Sega Saturn Control Pad is released for Windows PCs in Japan.
- 2005 - Sakura Taisen V: Saraba, Itoshiki Hitoyo Music Collection New York Ongakukan, a CD, is released in Japan.
- 2006 - Sengoku San-ri Taisen Hanafuda is released for EZweb (BREW 3.1) compatible phones through Sega's Pet * Sega portal in Japan.
- 2007 - Medieval II: Total War - Królestwa is released for Windows PCs in Poland while Alien Syndrome is released for the Wii and PlayStation Portable alongside Crack Down, ESWAT: City Under Siege, Ghouls'n Ghosts, Shining in the Darkness, and Sonic the Hedgehog 3 for the Wii Virtual Console in Europe.
- 2009 - Livro Ilustrado Sonic X, a book, is released in Brazil.
- 2011 - Sukima no Mushi is released for EZweb (BREW 3.1) compatible phones through Sega's Puyo Puyo! Sega portal in Japan. Comix Zone is released for the PlayStation 3 in Taiwan.
- 2012 - Wappy Dog is released for the Nintendo DS in Europe and Australia.
- 2021 - Sonic Colours: Ultimate is released for the PlayStation 4, Xbox One, Nintendo Switch and on Epic Games Store in North America, Europe, and Australia.
- 2023 - A Closed Beta for Endless Dungeon happens for Steam and Epic Games Store in North America, Europe, and Australia.