Anniversaries/August 31
From Sega Retro
August 31 (add)
- 1995 - Sanou Kaihatsu Series 1 Zukei Ninshiki is released for the Sega Pico in Japan.
- 1998 - Black/Matrix Koushiki Guide Book, Deep Fear: Big Table Kara no Seikan, Dynamite Deka 2 Official Guide, and Wachenröder Official Guide, all books, are released in Japan.
- 1999 - Doraemon: Yometa yo-Kaketa yo Hiragana Katakana is released for the Sega Pico in Japan. Blue Stinger and TrickStyle are released for the Sega Dreamcast in North America.
- 2000 - Ganbare Nippon! Olympic 2000 and Jahmong are released for the Sega Dreamcast alongside Sakura Taisen Denmaku Club 2 for Windows PCs in Japan. Prima's Official Strategy Guide: Half-Life, a book, is released in North America. Sydney 2000 is released for the Sega Dreamcast in France. Star Wars: Episode I Racer is released for the Sega Dreamcast in Spain.
- 2004 - Spy Fiction is released for the PlayStation 2 in North America.
- 2005 - Pro Yakyuu Team o Tsukurou! 3 Koushiki Complete Guide, a book, is released in Japan.
- 2006 - Phantasy Star Universe Visual Book, a book, is released alongside Phantasy Star Universe Game Soundtrack, a CD, as well as Phantasy Star Universe and Spartan: Kodai Greek Eiyuuden for the PlayStation 2, Condemned: Psycho Crime for the Xbox 360, and Phantasy Star Universe for Windows PCs, all in Japan.
- 2009 - Phantasy Star is released for the Wii Virtual Console in North America.
- 2010 - Hatsune Miku: Project DIVA 2nd is made available for digital download on the PlayStation Store alongside Hime-Chen Otogi Chikku Idol Lilpri Appli for the iPad in Japan. Valkyria Chronicles II is released for the PlayStation Portable in North America.
- 2011 - Comix Zone and Juuouki are released for the PlayStation 3 in Japan.
- 2012 - Sakura Taisen New York Hoshigumi Live 2012: Dareka o Wasurenai Sekai De, a stage play, debuts in Japan. Hatsune Miku: Project DIVA f is released for the PlayStation Vita in South Korea.
- 2017 - Sekaiju to Fushigi no Dungeon 2 is released for the Nintendo 3DS in Japan. Golden Axe is made available for the Sega Forever service for Android devices in North America, Europe, and Australia and for iOS in North America and Europe. Rock of Ages II: Bigger & Boulder is released for the Xbox One in Hong Kong.
- 2018 - Another World HD, an aftermarket Sega Dreamcast game, is released in North America. Persona 3 The Movie: No. 3: Falling Down, a Blu-ray, is released in Germany.
- 2019 - Border Break Music Collection Type-02, a CD, is released in Japan as well as being made available to download from iTunes in Japan. Border Break Music Collection Type-02 is made available to download from iTunes in North America and Europe.
- 2020 - Sonic the Hedgehog 2: Dr. Eggman no Unmei, a book, is released alongside Border Break Music Collection Type-04, a CD, in Japan.
- 2021 - Sonic 30th Anniversary Symphony (Live) is made available to download from Amazon, iTunes, and the AWA, Kkbox, Line, Mora, and Recochoku streaming platforms in Japan while it is released for iTunes North America, Amazon in North America and Europe, and for YouTube Music and Spotify worldwide.
- 2022 - Phantasy Star Online 2: New Genesis is released for the PlayStation 4 in North America.
- 2023 - SG-1000 Works: Segaiden Vol. I is made available to order from Limited Run Games's website.