Anniversaries/June 18
From Sega Retro
June 18 (add)
- 1993 - Power Monger is released for the Sega Mega Drive in Japan. The Official Sega Solid Gold Guide: Sonic the Hedgehog 2, a book, is released in the United Kingdom.
- 1997 - Kimi ga Inai Yoru and Last Bronx: Tokyo Bangaichi Sound Battle, both CDs, are released in Japan.
- 1998 - Azel Panzer Dragoon RPG Guide Book, a book, is released alongside Keriotosse!, Langrisser V: The End of Legend,Linda³ Kanzenban,Murakoshi Seikai no Bakuchou Nihon Rettou,Princess Maker: Yumemiru Yousei, and Ultraman Zukan 3 for the Sega Saturn in Japan.
- 2001 - Sonic the Hedgehog and Sonic Watch are released for i-mode 503i compatible phones through Sega's Sonic Cafe portal in Japan.
- 2003 - Sakura Taisen: École de Paris Part 2, a VHS and DVD, is released alongside Monkey Ball for Vodafone Live! (256KB) compatible phones through Sega's Sega Ages portal, O Ryouri! Mune Kyun for J-Sky (50KB) compatible phones through Sega's Pocket Works portal, Purge no Dengeki Oshioki Show for J-Sky (50KB) compatible phones through Sega's Ulala no Channel J portal, and Treasure Seeker for J-Sky (50KB) compatible phones through Sega's Pet * Sega portal, all in Japan.
- 2004 - Sonic Advance 3 is released for the Game Boy Advance in Europe.
- 2009 - Golden Axe is released for iOS in North America. Let's Tap is released for the Wii in Australia.
- 2014 - Castle of Illusion Starring Mickey Mouse is released for Android devices in North America, Europe, and Australia.
- 2018 - Persona 3 The Movie: No. 4: Winter of Rebirth, a Blu-ray, is released in the United Kingdom.
- 2019 - Citizens of Space is released for the PlayStation 4, Xbox One, Nintendo Switch, and Steam in North America, Europe, and Australia.
- 2020 - Zumba de Shibou Nenshou! is released physically for the Nintendo Switch in South Korea, Taiwan, and Hong Kong.