Anniversaries/April 28
From Sega Retro
April 28 (add)
- 1993 - Doraemon Nora no Suke no Yabou is released for the Sega Game Gear in Japan.
- 1994 - Shinobi: The Fear Pavilion and Streets of Rage: Bad City Fighters, both books, are released in the United Kingdom.
- 1995 - From TV Animation Slam Dunk: Kyougou Makkou Taiketsu! and True Lies are released for the Sega Mega Drive alongside Tails' Skypatrol and Tempo Jr. for the Sega Game Gear, as well as Ayrton Senna Personal Talk: Message for the future, Kisuishou Densetsu Astal, Sangokushi IV, and Virtual Hydlide for the Sega Saturn in Japan.
- 1998 - Pro Yakyuu Team mo Tsukurou! Official Guide: Yarikomi Hen, a book, is released in Japan.
- 2000 - Resident Evil 2 is released for the Sega Dreamcast in Europe. Red Dog: Superior Firepower is released for the Sega Dreamcast in Australia. JoJo's Bizarre Adventure is released for the Sega Dreamcast in North America and Europe.
- 2003 - Taisen Mahjong HaoPai 2 is released for EZweb (Java Phase 2/2.5) compatible phones through Sega's Sega Ages portal in Japan.
- 2004 - Cherry Blossom and Orange Pocket: Cornet are released for the Sega Dreamcast alongside Fukurou-kun no Happy Gomoku for J-Sky (50KB) compatible phones through Sega's Pet * Sega portal and Wonder Boy for EZweb (Java Phase 3) compatible phones through Sega's Sega Ages portal in Japan.
- 2005 - Kouchuu Ouja Mushiking: Atsumete Asobou Kouchuu Zukan is released for the Sega Pico alongside Sega Ages 2500 Series Vol. 19: Fighting Vipers for the PlayStation 2 in Japan. Puyo Pop Fever is released for the Nintendo DS in North America.
- 2007 - Phantasy Star Universe Settei Shiryoushuu and Shining Force EXA Visual Settei Shiryoushuu, both books, are released alongside Medalink, a medal game, in Arcades in Japan.
- 2009 - Sonic Dash Quiz is released for i-mode 90x compatible phones through Sega's Puyo Puyo! Sega portal in Japan.
- 2010 - Sakura Taisen Paris Hanagumi Live 2009: Moeagare Jiyuu no Tsubasa, an album for the stage play of the same name, is released alongside Bayonetta/Forza Motorsport 3 for the Xbox 360 in Japan.
- 2011 - Columns Jewel is released for Android devices through Sega's Puyo Puyo! Sega portal alongside Napoleon: Total War for Windows PCs in Japan. Thor: God of Thunder is released for the Xbox 360, Wii, PlayStation 3, and Nintendo DS in Australia. Streets of Rage 3 is released for iOS in Japan, North America, and Europe.
- 2015 - 3D Bare Knuckle II: Shitou e no Requiem is released for the Nintendo 3DS in Japan.
- 2016 - Phantasy Star Online 2 Special Book Vol. 1, a book, is released in Japan. Sega Mega Drive and Genesis Classics Hub is released on Steam in North America and Europe. Odin Sphere Leifthrasir is released for the PlayStation 4 and PlayStation Vita in South Korea and Taiwan.
- 2017 - Puyo Puyo Tetris is released for the PlayStation 4 in Europe. Warhammer 40,000: Dawn of War III is released on Steam in Australia.
- 2019 - Border Break Music Collection, a CD, is released in Japan and for iTunes in Japan, North America, and Europe.
- 2020 - Border Break Music Collection Type-03, a CD, is released in Japan. Sakura Wars is released for the PlayStation 4 in North America and Europe.
- 2021 - Phantasy Star Online 2 Episode 6 Settei Shiryoushuu, a book, is released in Japan.
- 2022 - The House of the Dead: Remake is released for the PlayStation 4, Xbox One, Stadia, Steam, and GOG in North America and Europe.