Line #20 Main/ViralUnlockable


1	A Viral Unlockable is a piece of UnlockableContent such as an achievement, skin, or weapon, that is earned by playing with another player who has already unlocked it. Depending on the game, merely meeting such a player may be enough, or you might have to defeat (or [[AchievementMockery be defeated by]]) the player in question.
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3	Because of the obvious Catch22Dilemma involved with this trope, ''someone'' has to get it some other way [[PatientZero so they can spread it to normal players]]. Methods includes time-limited events, an alternate (often much more difficult) unlocking method, or some people (usually staff members) being given it immediately.
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5	A type of SocializationBonus, and possibly a LuckBasedMission.
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7	----
8	!!Examples
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10	[[AC:Augmented Reality Game]]
11	* ''VideoGame/FiveNightsAtFreddysARSpecialDelivery'': If you didn't want to pay for it yourself, you had a chance at getting a character's skin if you successfully fended off the animatronic that a friend sent to you.
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13	[[AC:Card Battle Game]]
14	* ''VideoGame/HearthstoneHeroesOfWarcraft'', as a reference to the Corrupted Blood incident, made the Hakkar card back unlockable for most players by playing against anyone else who has the Hakkar card back. It also automatically switches your card back to that, so you could be unintentionally spreading it if you didn't check.
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16	[[AC:Fighting Game]]
17	* In ''VideoGame/SuperSmashBrosBrawl'', playing online against a secret character unlocks that character instantly.
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19	[[AC:First Person Shooter]]
20	* ''VideoGame/Borderlands1'' has "And They'll Tell Two Friends", a trophy/achievement unlocked by playing co-op with either a Creator/GearboxSoftware employee or another player who's earned it.
21	* Some title cards in the ''VideoGame/CallOfDuty'' series are unlocked in this manner. For example, the "STD" and "Infected" titles in ''VideoGame/CallOfDutyModernWarfare2'' and ''[[VideoGame/CallOfDutyModernWarfare3 3]]'' are earned by using your knife to kill someone who has the title equipped.
22	* The first ''Videogame/Left4Dead'' has the "Outbreak" achievement that is passed on by Boomer players puking on people without the achievement.
23	* ''Videogame/PAYDAY2'' has the mysterious "Virus" achievement. Its only description is you need to play with someone who owns that achievement to get it.
24	* ''VideoGame/TeamFortress2'':
25	** The Pyrovision goggles can be earned by dominating a player who was wearing them. Seeding was done by just giving a pair to anyone who launched the game in a limited time.
26	** The infamous Ghastly Gibus. Again earned by dominating someone wearing the hat. Seeded by a semi secret webpage.
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28	[[AC:Multiplayer Online Battle Arena]]
29	* The Creeper Clunk skin from ''VideoGame/{{Awesomenauts}}'' is unlocked by killing a player who is playing as Clunk and is wearing the skin.
30	* In ''VideoGame/HeroesOfTheStorm'', Cho'gall was initially released in this way - [[MechanicallyUnusualFighter a two-headed character controlled by two players at once]], you could play as one of the heads as long as someone who had unlocked him was playing the other. After doing this, he was unlocked for your own use.
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32	[[AC:Racing Game]]
33	* The Xbox 360 version of ''VideoGame/NeedForSpeedCarbon'' has multiple achievements that could be obtained by completing certain [[TemporaryOnlineContent online gamemodes with other players]] that already have the achievement. Each achievement is named after their gamemode (for example: Knockout Fever for Pursuit Knockout races), and if you obtained all three viral achievements, you would unlock the Carbon Plague achievement, granting you a [[CoolCar unique black virus-themed livery for your car]].
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35	[[AC:Real-time Strategy]]
36	* ''VideoGame/BrutalLegend'' has the "Six Degrees of Schafer" achievement, which can only be obtained by playing an online game against someone who already has it (with the original vector being, of course, Creator/TimSchafer).
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38	[[AC:Rhythm Game]]
39	* The ''VideoGame/CrossBeats REV.'' song "Blue Destiny Blue Eternal" can only be unlocked by playing a multiplayer session with someone who has the song unlocked, and then playing the song in said session.
40	* Several ''VideoGame/{{jubeat}}'' games allow you to unlock songs simply by playing them in local or online multiplayer rather than through their "proper" unlock conditions. In the case of online, you pick a "matching select" option instead of a specific song and the game will pick a song that others on the network are currently waiting to play; if the song is not one you've unlocked yet, you will obtain it. In fact, one song could be unlocked by online-matching with particular ''members of Konami staff'', although the usual "pick matching select" and "have someone else pick it in local matching" methods work too.
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42	[[AC:Role-playing Game]]
43	* The post-game DLC quests for ''VideoGame/DragonQuestIX'' have become this since the DS' Wifi Connection servers were disabled- the quests can still be unlocked via local wireless connection with a player who already has them, making them one of the few bits of DS DLC that can still be legitimately obtained post-shutdown.
44	* In ''[[VideoGame/PokemonRubyAndSapphire Pokémon Omega Ruby and Alpha Sapphire]]'', the Eon Ticket item (allowing the owner to battle Latias or Latios depending on version) was distributed via [=StreetPass=], meaning that getting it required you to be near someone else who had the Ticket and who had their 3DS with them. This made getting it fairly easy in populated areas, but ''very'' difficult for players who were more isolated.
45	* Downplayed in ''VideoGame/EldenRing''. The gesture named "The Ring" can only be obtained by pre-ordering the game before its release (obviously no longer possible) or by killing a boss in CoopMultiplayer with someone who pre-ordered the game. The downplayed nature comes from the fact that co-oping a boss with someone who knows the gesture but did ''not'' pre-order does not unlock it, meaning that as time goes by and early buyers move on to other games, it gets harder and harder to get "infected".
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47	[[AC:Turn-based Strategy]]
48	* ''VideoGame/XCOMEnemyUnknown'' has an achievement named "Bubonic", which can only be earned by playing online against someone who already has it.
49	* ''VideoGame/{{Warzone}}'' has the "Viral Achievement", which is earned by defeating someone who already has it.
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51	[[AC:Third-Person Shooter]]
52	* In the ''Franchise/{{Splatoon}}'' games, it's possible to order pieces of clothing gear from the other players in your plaza. Upon placing an order, you'll be able to purchase a copy of that gear item from Spyke or Murch the following day. While this system does have its limitations -- some items that are obtained as part of promotional events or unlocked in the single-player campaigns cannot be ordered -- several gear items that would otherwise be unobtainable TemporaryOnlineContent can still be acquired through this method.
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54	[[AC:Web Game]]
55	* In ''Website/DragonCave'':
56	** The Tinsel and Shimmer-scale breeds are only available as contest prizes or having it bred. For a long time all Tinsels and Shimmer-scales on the site were descended from the 5 gold/10 silver/15 bronze Tinsels and 10 gold/20 silver/30 bronze Shimmer-scales given to the original winners of their respective contests, but they have since been made much more obtainable (e.g. monthly raffle).
57	** For Valentine's Day, Halloween, and Christmas, there's a new limited-time release each year that drops only for 24-72 hours depending on the event. The only way to obtain these breeds in subsequent years is to get one that was bred by another user.
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59	[[AC:Real Life]]
60	* The concept of an [[https://en.wikipedia.org/wiki/Erdos_number Erdős number.]] Mathematician Paul Erdős had a number of 0. Anybody who has worked directly with him is given the number 1. Working with somebody who has an Erdős number of 1 grants one the Erdős number 2, and so on. In a similar vein, the concept of [[https://en.wikipedia.org/wiki/Six_Degrees_of_Kevin_Bacon#Bacon_numbers Bacon Numbers]] calculates the [[SixDegreesOfKevinBacon distance between an actor and Kevin Bacon]].
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Context Main / ViralUnlockable