History MilestoneCelebration / VideoGames

** The tenth anniversary was celebrated with ''VideoGame/SonicAdventure2'', which saw the release of a "Birthday Pack", which included the game, a commemorative coin, a soundtrack CD, a booklet on the history of the franchise, and a special binding to hold them together. Later that same year, an upgraded version of Sonic Adventure 2 known as ''Sonic Adventure 2: Battle'' and ''VideoGame/{{SonicAdvance|Trilogy}}'' were both released in Japan before hitting elsewhere a year later.

** The tenth anniversary was celebrated with ''VideoGame/SonicAdventure2'', which saw the release of a "Birthday Pack", which included the game, a commemorative coin, a soundtrack CD, a booklet on the history of the franchise, and a special binding to hold them together.
** The fifteenth, in 2006, with ''VideoGame/SonicTheHedgehog1 [[UpdatedReRelease Genesis]]'' and ''VideoGame/SonicTheHedgehog2006''.

** The franchise celebrated its anniversary [[note]]that is, of ''VideoGame/SuperMarioBros1'', not of Mario's real debut in ''VideoGame/DonkeyKong''[[/note]] with "[[GratuitousEnglish Happy! Mario 20th]]". They had a website (now defunct) and a soundtrack (with selections from the original game, ''VideoGame/SuperMarioBrosTheLostLevels'', ''VideoGame/SuperMarioBros3'', ''VideoGame/SuperMario64'', and ''VideoGame/SuperMarioSunshine'') to celebrate with it, and they even offered a [[https://media.sonicscanf.org//gallery/sonic-the-hedgehog/Mario%2020th.png "20th Happy Mario!"]] ''VideoGame/{{Sonic|TheHedgehog}}'' shirt!

** ''Kirby'''s 30th anniversary saw the release of ''VideoGame/KirbyAndTheForgottenLand'', the franchise's first mainline 3D platformer.

** Kirby's 30th anniversary saw the release of ''VideoGame/KirbyAndTheForgottenLand'', the franchise's first mainline 3D platformer.

* ''Franchise/{{Pokemon}}'': The franchise celebrated its 20th anniversary in 2016 by doing a number of things.
** For each month of the year starting in February, one [[SecretCharacter Mythical Pokémon]] was distributed via various outlets depending on region (usually download codes given out at game stores for free). The release order was Mew in February, Celebi in March, Jirachi in April, Darkrai in May, Manaphy in June, Shaymin in July, Arceus in August, Victini in September, Keldeo in October, Genesect in November, and Meloetta in December.
** On the actual anniversary date of February 27, ''VideoGame/PokemonRedAndBlue'', ''Pokémon Yellow'', and ''Pokémon Green'' (Japan only) were released on the 3DS Virtual Console. Also released were specially colored 3DS/2DS bundles with one of the correspondingly-colored games already installed.
** Also on the actual anniversary date (in Japan), there was a worldwide announcement for the next core games, ''VideoGame/PokemonSunAndMoon'' with a Holiday 2016 release date.
** The earliest cards from [[TabletopGame/{{Pokemon}} the official Trading Card Game]] were reprinted.
** Two new games were released, ''VideoGame/PokemonGo'' for mobile and ''VideoGame/PokkenTournament'' for the UsefulNotes/WiiU.
** ''Anime/PokemonTheFirstMovie'', ''Anime/{{Pokemon 2000}}'', ''Anime/{{Pokemon 3}}'', and ''Anime/Pokemon4Ever'' were digitally remastered.
** In ''VideoGame/SuperMarioMaker'', three Pokémon costumes (based respectively on Bulbasaur, Charmander and Squirtle) were made unlockable in an update.
** ''Pokémon''[='=]s official Youtube channel also released a number of shorts called ''WebAnimation/PokemonGenerations'', which can be viewed [[https://www.youtube.com/playlist?list=PLQWzKIaERirwv9M89dxN3bNLY0PyuChOU here]].
** For the 25th anniversary, ''Pokémon Brilliant Diamond and Shining Pearl'', remakes of ''VideoGame/PokemonDiamondAndPearl'' for the UsefulNotes/NintendoSwitch were announced for a late 2021 release. Also announced for a 2022 release is ''Pokémon Legends: Arceus'', a seemingly WideOpenSandbox take on the series set in a feudal-era Sinnoh.
** Gholdengo from ''VideoGame/PokemonScarletAndViolet'' is a MilestoneCelebration ''Pokémon'' being the 1000th Pokémon in the series' Pokédex and requiring an in game grind of 999 of its preevolution's coins to evolve into.
** In honor of exceeding 1000 Pokémon with ''Scarlet and Violet'', the official [=YouTube=] channel premiered [[https://www.youtube.com/watch?v=qYJwN4cvde0 a special nine-minute video]] showcasing all 1008 Pokémon, with the first six minutes being a recap of the first eight generations of Pokémon sorted by situational encounters, evolution gimmicks, etc., and the remaining three minutes featuring the ''Scarlet and Violet'' newcomers presented by their National Pokédex numbers.

** The 35th anniversary of the franchise was honored with, among other things, ''Super Mario 3D All-Stars'', an UpdatedRerelease [[CompilationRerelease collection]] of ''VideoGame/SuperMario64'', ''VideoGame/SuperMarioSunshine'' and ''VideoGame/SuperMarioGalaxy''; ''VideoGame/SuperMario3DWorld + Bowser's Fury''; the augmented reality game ''VideoGame/MarioKart Live: Home Circuit''; a special Game and Watch unit containing the first game, ''The Lost Levels'' and a Mario-themed variant of the ''Ball'' game; a 35th Anniversary Ninji Speedrun in ''VideoGame/SuperMarioMaker2''; ''VideoGame/SuperMarioBros35'', an online competitive version of ''Super Mario Bros.''; and various licensed product deals.

** Pokemon's official Youtube channel also released a number of shorts called ''WebAnimation/PokemonGenerations'', which can be viewed [[https://www.youtube.com/playlist?list=PLQWzKIaERirwv9M89dxN3bNLY0PyuChOU here]].

** Gholdengo from ''VideoGame/PokemonScarletAndViolet'' is a MilestoneCelebration ''Pokemon'' being the 1000th Pokemon in the series' Pokedex and requiring an in game grind of 999 of its preevolution's coins to evolve into.

** Gholdengo from ''VideoGame/PokemonScarletAndViolet is a MilestoneCelebration ''Pokemon'' being the 1000th Pokemon in the series' Pokedex and requiring an in game grind of 999 of its preevolution's coins to evolve into.

* ''VideoGame/{{Solatorobo}}'' is considered to be Creator/CyberConnect2's 15th anniversary celebration, being a SpiritualSequel to [[VideoGame/TailConcerto the very first game they developed]].

* For the 25th anniversary of the ''{{VideoGame/Fallout}}'' franchise, an alien themed update was released for ''VideoGame/Fallout76''. The game was also free to play for one week, with Amazon Prime members being able to obtain a free copy of the game and Xbox Game Pass members gaining one month of Fallout 1st, ''Fallout 76''[='=]s subscription service. Also released was the Post-Apocalyptic Loyalty Simulator (P.A.L.S.), a ''Fallout'' themed personality quiz which sorts you in one of the franchise's numerous factions. ''VideoGame/FalloutShelter'' also received an update after several years, which adds new recruitable Duellers to Lunchboxes, additional weapons to equip to Dwellers, a new theme for Diners and Living Quarters, and a new questline which is also alien themed.

** The 35th anniversary of the franchise was honored with, among other things, ''Super Mario 3D All-Stars'', an UpdatedRerelease [[CompilationRerelease collection]] of ''VideoGame/SuperMario64'', ''VideoGame/SuperMarioSunshine'' and ''VideoGame/SuperMarioGalaxy''; ''VideoGame/SuperMario3DWorld + Bowser's Fury''; the augmented reality game ''VideoGame/MarioKart Live: Home Circuit''; a special Game and Watch unit containing the first game, ''The Lost Levels'' and a Mario-themed variant of the ''Ball'' game; a 35th Anniversary Ninji Speedrun in ''VideoGame/SuperMarioMaker2''; ''Super Mario Bros. 35'', an online competitive version of ''Super Mario Bros.''; and various licensed product deals.

** The Splatfest for July, its month of release, was Squid vs. Octopus, reflecting the [[PlayerCharacter Inklings]] and the [[EvilCounterpartRace Octarians]]. Your player character also matched your side, meaning that people can try out Octolings without buying the [[ExpansionPack Octo Expansion]]. During the Splatfest itself, confetti fell at the start of each match, and the Shifty Station had fireworks, neither of which other Splatfests had. In-universe, Pearl and Marina comment on the first anniversary of Inkopolis News.

* Creator/{{Bethesda}} released ''[[VideoGame/TheElderScrollsArena Arena]]'' and ''[[VideoGame/TheElderScrollsIIDaggerfall Daggerfall]]'' as FreewareGames in 2004 and 2009, respectively, marking the 10th and 15th anniversaries of ''Franchise/TheElderScrolls'' series. For the series' 25th anniversary, ''[[VideoGame/TheElderScrollsIIIMorrowind Morrowind]]'' was offered for free for March 25, 2019 only.

* For their 10th anniversary in 2019, ''VideoGame/LeagueOfLegends'' developers Riot Games had quite possibly one of the biggest celebrations of any gaming company ever. For 10 years they'd focused almost entirely on their groundbreaking MOBA and its esports scene (aside from its autochess spin-off, ''Teamfight Tactics''), despite suggestions that they diversify into other projects, but on this occasion they revealed that the reason they'd never worked on anything else was because they'd been saving it all up to show at once. Things revealed during the 10th anniversary celebration included:

** A streamlined mobile port of ''[=LoL=]'' called ''Wild Rift'' and a mobile port of ''Teamfight Tactics''.

** Their new publishing division called "Riot Forge", dedicated to supporting third-party and indie development of more games based on ''[=LoL=]'' (the first two of which, ''[=CONV/RGENCE=]'' and ''RUINED KING'', would be revealed later that year at The Game Awards 2019).

** An animated series set in the ''[=LoL=]'' universe called ''Arcane'', which will be set in the dual cities of Piltover and Zaun and will cover the previously-unexplained backstories of popular champions Vi and Jinx.

** ''Street Fighter 30th Anniversary Collection'' contains the original ''Street Fighter'', ''Street Fighter II'' and its updates (up to Super Turbo), ''[[VideoGame/StreetFighterAlpha Street Fighter Alpha]]'' 1-3, and ''Street Fighter III'' and both of its updates which include Giant Impact and 3rd Strike.

* ''{{VideoGame/Contra}} 4'' was released at the 20th anniversary game for the series, emphasized with its heaps of series FanService ([[MyFriendsAndZoidberg although the other type is unlockable]]).

** The fifteenth, in 2006, with ''[[VideoGame/SonicTheHedgehog1 Sonic the Hedgehog]] [[UpdatedReRelease Genesis]]'' and ''VideoGame/SonicTheHedgehog2006''.

* ''{{Franchise/Castlevania}}'':

** The franchise celebrated its anniversary [[note]]that is, of ''VideoGame/SuperMarioBros1'', not of Mario's real debut in ''VideoGame/DonkeyKong''[[/note]] with "[[GratuitousEnglish Happy! Mario 20th]]". They had a website (now defunct) and a soundtrack (with selections from the original game, ''VideoGame/SuperMarioBrosTheLostLevels'', ''VideoGame/SuperMarioBros3'', ''VideoGame/SuperMario64'', and ''VideoGame/SuperMarioSunshine'') to celebrate with it, and they even offered a [[https://media.sonicscanf.org//gallery/sonic-the-hedgehog/Mario%2020th.png "20th Happy Mario!"]] ''[[VideoGame/SonicTheHedgehog Sonic]]'' shirt!

** They did it again for the ten year anniversary of the [[VideoGame/{{Halo 2}} second game]], not just by graphically revamping ''Halo 2'' and adding further story content, but by compiling together the most recent versions of the first four numbered entries (including the before-mentioned H1 and H2 rereleases) into ''Halo: The Master Chief Collection'', which includes support for all four multiplayers (including every map ever released), the digital feature ''Halo: Nightfall'', and access to the ''VideoGame/Halo5Guardians'' multiplayer beta.

** While previous anniversaries were celebrated in a low key fashion, Nintendo and HAL decided to go all out for the franchise's 20th anniversary, which they would do so by making a CompilationRerelease for the Wii titled ''Kirby's Dream Collection'', which compiled all three ''[[VideoGame/KirbysDreamLand Dream]] [[VideoGame/KirbysDreamLand2 Land]]'' [[VideoGame/KirbysDreamLand3 entries]], ''VideoGame/KirbysAdventure'', ''VideoGame/KirbySuperStar'' and ''VideoGame/Kirby64TheCrystalShards'' in one package. The compilation also contains additional goodies and content as well, such as an art book and soundtrack, an in-game museum that goes through both Kirby's history and real world events that coincided with the games, a couple of episodes from Anime/KirbyRightBackAtYa, and new challenge stages based off of the ones from ''VideoGame/KirbysReturnToDreamland''.

* ''VideoGame/{{Drakengard 3}}'' was meant as this for the ''VideoGame/{{Drakengard}}'' series, marking its 10th anniversary.

* ''VideoGame/PaperMarioBlackPit'' is a [[GameMod rom hack]] of the original ''[[VideoGame/PaperMario64 Paper Mario]]'' made to celebrate it's 20th anniversary.

* Creator/SquareEnix had a group of ''Franchise/FinalFantasy'' games released under the 20th Anniversary banner of the series, including a PSP UpdatedRerelease of the original and the MassiveMultiplayerCrossover ''VideoGame/DissidiaFinalFantasy''.

* ''VideoGame/CastlevaniaPortraitOfRuin was released in 2006, 20 years after the release of 1986's ''[[VideoGame/CastlevaniaI Akumajo Dracula]]'' for the Famicom Disk System in Japan. The game includes plenty of references to series history and pre-order bonuses included an artbook, timeline, and soundtrack [=CD=], all of which containing art/information/music spanning the entire series.

[[caption-width-right:350:Thirty years of adventures under his belt and yet, [[NotAllowedToGrowUp he's still fifteen]].]]

** For the 25th Anniversary, Sega released ''Puyo Puyo Chronicle'', which again has lots of modes to play, but more notably, is the second time in the series after ''Puyo Puyo DA!'' to go [[VideoGame3DLeap full 3D]] with a chibi artstyle. It also introduced an RPG mode with the Skill Battle ruleset being the main focus. Despite the last anniversary games being multiplatform, ''Chronicle'' is [[UsefulNotes/Nintendo3DS Nintendo 3DS]] exclusive.

* ''Paper Mario Black Pit'' is a [[GameMod rom hack]] of the original ''[[VideoGame/PaperMario64 Paper Mario]]'' made to celebrate it's 20th anniversary.

** Pokemon's official Youtube channel also released a number of shorts called ''Anime/PokemonGenerations'', which can be viewed [[https://www.youtube.com/playlist?list=PLQWzKIaERirwv9M89dxN3bNLY0PyuChOU here]].

** Sonic's 30th Anniversary was a bit more low key compared to the previous anniversaries due to the ongoing UsefulNotes/COVID19Pandemic affecting plans, but Sega still celebrated the occasion in a big way. The occasion was celebrated by the release of ''Sonic Colors Ultimate'' (a remastered port of ''VideoGame/SonicColors''), the first unveilings of ''Sonic Origins'' (a CompilationRerelease featuring remasters of the first four classic games) and ''VideoGame/SonicFrontiers'', a 30th anniversary themed-symphony, and the release of the ''Sonic the Hedgehog Encyclo-speed-ia'', (a comprehensive encyclopedia on the history of the main series titles written by long-time ''Sonic'' comic writer Creator/IanFlynn). In addition, an official DLC pack for ''VideoGame/{{Minecraft}}'' was developed and released by Gamemode One, numerous collaborations occurred with various Sega games and [[https://twitter.com/SonicOfficialJP/status/1408062951769010180 Sonic himself became a]] VirtualYouTuber. IDW would also release several [[Recap/SonicTheHedgehogIDW30thAnniversary Classic Sonic]]-[[https://tvtropes.org/pmwiki/pmwiki.php/Recap/SonicTheHedgehogIDW30thAnniversaryFCBD2021 themed comics for the occasion]].

** Sonic's 30th Anniversary was a tad bit more low key compared to the previous anniversaries due to the ongoing UsefulNotes/COVID19Pandemic affecting plans, but Sega still celebrated the occasion in a big way. The occasion was celebrated by the release of ''Sonic Colors Ultimate'' (a remastered port of ''VideoGame/SonicColors''), the first unveilings of ''Sonic Origins'' (a CompilationRerelease featuring remasters of the first four classic games) and ''VideoGame/SonicFrontiers'', a 30th anniversary themed-symphony, and the release of the ''Sonic the Hedgehog Encyclo-speed-ia'', (a comprehensive encyclopedia on the history of the main series titles written by long-time ''Sonic'' comic writer Creator/IanFlynn). In addition, an official DLC pack for ''VideoGame/{{Minecraft}}'' was developed and released by Gamemode One, numerous collaborations occurred with various Sega games and [[https://twitter.com/SonicOfficialJP/status/1408062951769010180 Sonic himself became a]] VirtualYouTuber. IDW would also release several [[Recap/SonicTheHedgehogIDW30thAnniversarySpecial Classic Sonic]]-[[https://tvtropes.org/pmwiki/pmwiki.php/Recap/SonicTheHedgehogIDW30thAnniversaryFCBD2021 themed comics for the occasion]]. Dreams Come True, the band of Masato Nakamura (the original composer of ''[[VideoGame/SonicTheHedgehog1 Sonic 1]]'' and ''[[VideoGame/SonicTheHedgehog2 2]])'', would also join in on the festivities by composing [[https://youtu.be/qeSx1G5u2oU two]] [[https://youtu.be/3bChjPoaRTE new remixes]] of Green Hill Zone for the occasion.

** Sonic's 30th Anniversary saw the release of the ''Sonic the Hedgehog Encyclo-speed-ia'', a comprehensive encyclopedia on the lore and history of the main series titles written by long-time ''Sonic'' comic writer Creator/IanFlynn in his first job at handling material for the games. A remaster of the Wii game ''VideoGame/SonicColors'' and ''VideoGame/SonicFrontiers'' were also announced. In addition, an official DLC pack for ''VideoGame/{{Minecraft}}'' was developed and released by Gamemode One, and [[https://twitter.com/SonicOfficialJP/status/1408062951769010180 Sonic himself became a]] VirtualYouTuber.
* ''VideoGame/CastlevaniaPortraitOfRuin'' was released in 2006, 20 years after the release of 1986's ''[[VideoGame/CastlevaniaI Akumajo Dracula]]'' for the Famicom Disk System in Japan. The game includes plenty of references to series history and pre-order bonuses included an artbook, timeline, and soundtrack [=CD=], all of which containing art/information/music spanning the entire series.