View source for Anniversaries/December 15

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[[File:GLoc GG JP Box Front.jpg|400px|link=G-LOC: Air Battle]]
*'''1985''' - ''[[Great Baseball (1985)|Great Baseball]]'' is released for the [[Sega Master System]] in Japan.
*'''1986''' - ''[[High School! Kimengumi]]'' is released for the [[Sega Master System]] in Japan.
*'''1989''' - ''[[Mega Drive no Subete]]'', a book, is released alongside ''[[Mega Selection]]'', a Compact Cassette and CD, as well as ''[[Herzog Zwei]]'' for the [[Sega Mega Drive]] in Japan.
*'''1990''' - ''[[Magical Hat no Buttobi Turbo! Daibouken]]'' is released for the [[Sega Mega Drive]] alongside ''[[G-LOC: Air Battle]]'' and ''[[Soukoban (Game Gear)|Soukoban]]'' for the [[Sega Game Gear]] in Japan.
*'''1991''' - ''[[Mega Selection II]]'', a CD, is released in Japan.
*'''1992''' - ''[[Dokusen! Taikan Game Hisshou Guidebook]]'' and ''[[Landstalker: Koutei no Zaihou Game Guide Book]]'', both books, are released in Japan. ''[[Streets of Rage 2]]'' is released for the [[Sega Mega Drive]] in North America.
*'''1993''' - ''[[Virtua Racing & OutRunners]]'', a CD, is released in Japan.
*'''1994''' - ''[[Gamemaster: Conquering Sega Genesis Games]]'', a book, is released in North America.
*'''1995''' - ''[[Super Momotarou Dentetsu III]]'' is released for the [[Sega Game Gear]] alongside ''[[Chibi Maruko-Chan no Taisen Pazuru Dama]]'', ''[[Clockwork Knight: Pepperouchau no Fukubukuro]]'', ''[[Darius Gaiden]]'', ''[[DX Jinsei Game]]'', ''[[EMIT Value Set]]'', ''[[Gunbird]]'', ''[[Wangan Dead Heat]]'', ''[[Kaitei Daisensou]]'', ''[[Kekkon: Marriage]]'', ''[[Magical Drop]]'', and ''[[The Hyper Golf: Devil's Course]]'' for the [[Sega Saturn]] in Japan. ''[[Gex]]'' is released for the [[Sega Saturn]] in North America.
*'''1997''' - ''[[Ginga Ojousama Densetsu Yuna Mika Akitaka Illust Works 2]]'' is released for the [[Sega Saturn]] in Japan.''[[Sega 350 Igr]]'', a book, is released in Russia.
*'''1999''' - ''[[Test Drive 6]]'' is released for the [[Sega Dreamcast]] in North America. ''[[Soul Fighter]]'' is released for the [[Sega Dreamcast]] in Spain. ''[[PenPen]]'', ''[[Sega Worldwide Soccer 2000]]'', and ''[[Tokyo Highway Challenge]]'' are released for the [[Sega Dreamcast]] in Australia.
*'''2000''' - ''[[Disney's Donald Duck Goin' Quackers]]'' and ''[[Speed Devils Online Racing]]'' are released for the [[Sega Dreamcast]] in North America. ''[[Disney's Donald Duck Quack Attack]]'' is released for the [[Sega Dreamcast]] in the United Kingdom while ''[[Capcom vs. SNK: Millennium Fight 2000]]'', ''[[Disney's 102 Dalmatians: Puppies to the Rescue]]'', ''[[POD 2]]'', ''[[Record of Lodoss War]]'', ''[[Star Wars Demolition]]'', ''[[Street Fighter III: 3rd Strike]]'', ''[[The Grinch]]'', ''[[Tomb Raider: Chronicles]]'', ''[[Tony Hawk's Pro Skater 2]]'', and ''[[Tokyo Highway Challenge 2]]'' are released for the [[Sega Dreamcast]] in Europe. ''[[Disney's Dinosaur]]'' and ''[[Sega GT]]'' are released for the [[Sega Dreamcast]] in Australia.
*'''2003''' - ''[[Sonic the Hedgehog: The Movie]]'', a DVD, is released in the United Kingdom.
*'''2004''' - ''[[SegaRocks Live in Japan]]'', a CD, is released alongside ''[[1000 Mile Monogatari]]'' for [[Vodafone Live! (256KB)]] compatible phones through Sega's [[Pet * Sega]] portal and ''[[Hanagumi Columns]]'' for [[i-mode 504i]] and [[J-Sky (50KB)]] compatible phones through Sega's [[Sakura Taisen Keitai Club]] portal in Japan.
*'''2005''' - ''[[Jissen Pachi-Slot Hisshouhou! Aladdin 2 Evolution]]'' is released for the [[PlayStation 2]] alongside ''[[Shadow the Hedgehog]]'' for the [[PlayStation 2]], [[Nintendo Gamecube]], and [[Xbox]] in Japan. ''[[Cool Herders]]'', an aftermarket [[Sega Dreamcast]] game, is released in North America.
*'''2006''' - ''[[Wild Jungle Brothers]]'', a [[Mid-size attraction]] and ''[[Fortune Forest]]'', a [[Large attraction]], both debut at [[Tokyo Joypolis]] in Japan. ''[[Columns]]'', ''[[Gunstar Heroes]]'', and ''[[Ristar]]'' are released for the [[Wii]] [[Virtual Console]] in Europe.
*'''2008''' - ''[[Sega Soccer Slam]]'' is released for the [[Xbox 360]] though the ''Xbox Originals'' program alongside ''[[Enduro Racer (Master System)|Enduro Racer]]'' for the [[Wii]] [[Virtual Console]] in North America.
*'''2009''' - ''[[Zaxxon]]'' is released for the [[Wii]] [[Virtual Console]] in Japan.
*'''2010''' - ''[[Touch de Uno! DX: Hansha Shinkei Hen]]'' is released for [[Vodafone Live! (3G)]] compatible phones through Sega's [[Puyo Puyo! Sega]] portal in Japan.
*'''2011''' - ''[[Puyo Puyo!! Anniversary Sound Collection]]'', a CD, is released alongside the game it for, ''[[Puyo Puyo!!]]'', for the [[Wii]], [[PlayStation Portable]], and [[Nintendo 3DS]], as well as ''[[Hatsune Miku: Project DIVA Extend]]'' being made available for digital download on the [[PlayStation Store]] in Japan. ''[[Sonic the Hedgehog CD (2011)|Sonic the Hedgehog CD]]'' is released for [[iOS]] in North America and Europe.
*'''2012''' - ''[[Border Break Artworks 2006-2012]]'', a book, is released in Japan.
*'''2014''' - ''[[Shining Resonance]]'' is released for the [[PlayStation 3]] in South Korea.
*'''2015''' - ''[[Wild River The Treasure Hunt]]'', a [[Mid-size attraction]], debuts at [[Tokyo Joypolis]] in Japan.
*'''2016''' - ''[[maimai Murasaki]]'' is released in Japanese Arcades.
*'''2017''' - The ''[[Super Retro Trio Plus]]'', a clone console manufactured by [[Retro-bit]], is released in the United Kingdom while ''[[Streets of Rage Perfect Soundtrack]]'', a CD, is released alongside ''[[Sega Catcher Online]]'' for [[Android]] devices in Europe. ''[[Sega Catcher Online]]'' is released for [[Android]] devices in Japan, North America, and Australia.
*'''2018''' - ''[[S.S.T. Band: 30th Anniversary Box]]'', a CD, is released in Japan.
*'''2020''' - ''[[Sakura Kakumei: Hana Saku Otome-tachi]]'' is released for [[Android]] devices and [[iOS]] in Japan.
*'''2022''' - ''[[Alien Storm (Mega Drive)|Alien Storm]]'', ''[[Columns]]'', ''[[Golden Axe II]]'', and ''[[Virtua Fighter 2 Genesis]]'' are released for the [[Nintendo Switch Online]] service for the [[Nintendo Switch]] in North America. ''[[Sonic Frontiers: The Music of Starfall Islands]]'', a vinyl album, is released in the United Kingdom. ''[[Sonic Prime]]'' begins streaming through the [[Netflix]] streaming service worldwide.
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