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{{HeroTabs}}
{{Infobox hero
| key = hero_viper
| voice_actor = Stephanie Kerbis<ref name=":1" /><ref>[https://www.imdb.com/title/tt33268153/fullcredits/ Deadlock] on [https://www.imdb.com/ IMDb]</ref>
| release_date = January 17, 2025
| codenames = Viper, Kali
| pronouns = She/Her
}}{{Quotation
| 2 = Slide in, ''pop-pop'', hit Jezebel's up for an overpriced Manhattan to celebrate.|4=Viper_upgrade_power3_06.mp3
}}
'''Vyper''' is a [[Hero]] in ''[[Deadlock]]''. After Slithering across the battlefield to swiftly avoid enemy attacks while spraying them with copious amount of bullets, Vyper can inject retreating foes with Lethal Venom to finish them off and use her Screwjab Dagger to hit faraway targets. By slinging her Petrifying Bolas, Vyper will make sure that her targets won't get away from her.

Vyper is an impulsive outlaw that gets thrown in jail as many times as she escapes it, building a reputation among a number of criminal allies and enemies across the [[wikipedia:Tri-state_area|New Jersey Tri-State Area]].

Vyper was added to [[Hero Labs]] as "Viper" on [[Update:October 24, 2024|October 24, 2024]], and officially released on [[Update:January 17, 2025|January 17, 2025]].

== Weapon ==

{{WeaponCard|Vyper|ph=true}}

== Abilities ==

{{AbilitySection
| hero_name   = Vyper
| ability_num = 1
}}

{{AbilitySection
| hero_name   = Vyper
| ability_num = 2
|notes=
* T3 also [[Build-Up|builds up]] with [[Melee Attack|melee damage]].
* T3 has {{#invoke:Abilities|get_ability_upgrade_prop|Lethal Venom|3|BuildUpPerShot}}% build-up per bullet, affected by [[Damage Falloff]].
}}

{{AbilitySection
| hero_name   = Vyper
| ability_num = 3
|notes=* When Slithering up slopes, Vyper will not lose any speed as she would on flat ground.
* The T3 barrier has an 8 second cooldown before being able to be triggered again by subsequent slides, affected by cooldown reduction.}}

{{AbilitySection
| hero_name   = Vyper
| ability_num = 4
}}

== Street Brawl ==
=== Ability Changes ===
<!--For fresh data see [[Deadlock:Street Brawl Ability Changes]] -->
Apart from [[Street Brawl#Heroes|global changes]], Vyper does '''not''' have any special modifications for her abilities in Street Brawl.
=== Item Draft ===
{{HeroStreetBrawlItems|Vyper}}

== Backstory ==
{{Fates_Tale|viper}}

== Update history ==
{{Update history}}

== 3D model ==
{{3D_Model|Vyper}}
===Weapon===
{{3D Model|Vyper Weapon|size=240px}}

== Gallery ==
<gallery>
File:Vyper card.png|Vyper portrait
File:Vyper Gloat.png|Gloat portrait for Vyper
File:Vyper Critical.png|Critical health portrait for Vyper
File:Vyper.png|Vyper icon
File:Viper Render.png|Vyper in-game render
File:Vyper select background.png|Vyper select background
File:Viper Reference Sheet.png|Vyper reference sheet
File:Vyper Weapon.png|Vyper weapon - ''The Rattler''
File:Four heroes update.jpg|Vyper in the January 2025 update art
</gallery>

=== Typography ===
<gallery>
File:Vyper name.svg|Vyper's name typography
File:Vyper french.svg|Vyper's French typography
File:Vyper italian.svg|Vyper's Italian typography
File:Vyper polish.svg|Vyper's Polish typography
File:Vyper russian.svg|Vyper's Russian typography
File:Vyper schinese.svg|Vyper's Simplified Chinese typography
File:Vyper spanish.svg|Vyper's typography for Brazilian, Spanish, and Spanish-Latin America
File:Vyper turkish.svg|Vyper's Turkish typography
File:Vyper ukrainian.svg|Vyper's Ukrainian typography
</gallery>

=== Removed/Unused content ===
<gallery>
File:Vyper card old.png|Previous Vyper portrait
File:Vyper vertical old psd.png|Previous Vyper match portrait
File:Vyper icon old.png|Previous Vyper icon
File:Vyper leak 1.png|Leaked work-in-progress new Vyper model
</gallery>

== Trivia ==

* Vyper's current appearance is a modified version of ''[[Neon Prime]]'s'' {{HeroIcon|Kali}}. Vyper's files also replaced some of Kali's original files.
* Vyper's lead developer is [[Hopoo]],<ref>2024-10-28 - Hopoo; Deadlock Discord - "''yes I was lead on viper (and magician), it's why neither was in the hero list previously"''</ref> best known as the co-creator of the ''[[wikipedia:Risk_of_Rain_2|Risk of Rain]]'' series.
* A work-in-progress Vyper redesign model was leaked in May 2025. This model had a Cobra hood, a snake body instead of legs, no clothes, and a "WIP" sticker on the back.
** Ironically, real vipers don't have a hood.
* Before the [[Update:October 2, 2025|2025-10-02 Update]], Vyper was the only hero who started with an unlocked ability by default (Slither).
* According to her voice actress Stephanie Kerbis, Vyper is "not from Wisconsin or New Jersey".<ref name=":1">2025-09-04 - gammaton32 on [https://www.reddit.com/r/DeadlockTheGame/ reddit.com/r/DeadlockTheGame] - [https://www.reddit.com/r/DeadlockTheGame/comments/1n8qwaw/ Stephanie Kerbis is Vyper] (reposted from Stephanie's Tiktok)</ref>
* "Making [[wikipedia:Pruno|Pruno]] in the Hideout" is displayed as one's status in the in-game Friends List when playing as Vyper in the [[Hideout]].

== References ==
<references />

== Navigation ==
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