Internal namesCodenames used for this hero in the game files:
Viper
Vyper is a slithery Hero in Deadlock, moving quickly along the battlefield and engaging critical targets. She can Slither and slide to avoid enemy attacks with greater mobility, throwing slowing Screwjab Daggers and injecting her targets with Lethal Venom. By slinging her Petrifying Bolas, Vyper Slows and Damages groups while petrifying her hapless victim.
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 New Jersey Tri-State Area.
When it comes to breaking the law, not getting caught is a pretty important part of the job. Vyper never got that memo. Luckily for her, if there’s one thing she’s better at than being arrested, it’s escaping out of jail.
Having done time in every major prison in the tri-state area, Vyper has built an impressive network of street level lowlifes that owe her one. She’s also built an impressive network of street level lowlifes that want her dead, but she tries to focus on the positive.
Lore
Vyper has been to New Jersey,[1] Staten Island,[2] Philadelphia,[3] Illinois and Wisconsin.[4]
Vyper makes references to pruno, an improvised alcoholic beverage also known as "prison wine".[5][6]
Vyper believes Infernus "used to be hard, but now he's just a bitch".[14]
Vyper says her Screwjab Daggers are better than Shiv's Serrated Knives.[15]
Vyper says Yamato murdered a guy for owing the Seventh Moon a "C-Note" ($100).[16]
Vyper is barred from taking out another "marker" (slang for an informal loan) from Wraith's gambling ring, presumably because she still owes money to Wraith.[17]
Vyper says Calico has a reputation of "sloppy work" due to "a hit that went bad", a possible reference to the attempted assassination of Pocket.[4]
Vyper comments on Grey Talon's health, due to his age.[4]
Vyper wants Mirage to "stop yelling about the Djinn".[18]
Vyper has been kicked out of the Paradox museum.[19]
Gallery
Portrait
Icon
In-game render
Name typography
Model sheet
Vyper in the January 2025 update art
Weapon - The Rattler
Leaked work-in-progress new model
Trivia
Vyper's current appearance is a modified version of Neon Prime'sKali.
Vyper's lead developer is Hopoo,[20] best known as the co-creator of the Risk of Rain series.
Vyper is the only hero who starts with an unlocked ability by default.
"X" is displayed as one's status in the in-game Friends List when playing as X in the Hideout.
"Making Pruno in the Hideout" is displayed as one's status in the in-game Friends List when playing as Vyper in the Hideout.
Pruno is an an improvised alcoholic beverage made by prisoners.
↑Vyper's in-game voice line - "Probably a bad time to ask for an autograph?"
↑Vyper's in-game voice line - "When are you gonna get the message, Bebop? You suck!"
↑Vyper's in-game voice line (killed Mo & Krill) - "Love you guys, but not enough to like, let you win."
↑Vyper's in-game voice line (killed Mo & Krill) - "I'll swing by their hovel later to apologize, it'll be fine."
↑Vyper's in-game voice line - "Infernus used to be hard, but now he's just a bitch, slinging Mary Pickfords to other bitches... Oh my god, don't tell him I said that."
↑Vyper's in-game voice line (use Screwjab Dagger) - "Shiv's got nothing on me."
↑Vyper's in-game voice line - "I know a guy who owed the Seventh Moon a C-note... well, I knew a guy who owed the Seventh Moon a C-Note... Yamato murdered the shit out of him."
↑Vyper's in-game voice line - "I don't get why Wraith won't let me take out a marker, I paid it off! Once."
↑Vyper's in-game voice line - "Anything to stop that guy from yelling about the Djinn!"
↑Vyper's in-game voice line - "Okay, maybe next time, you guys shouldn't kick me out of the Paradox Museum!"
↑2024-10-28 - Hopoo; Deadlock Discord - "yes I was lead on viper (and magician), it’s why neither was in the hero list previously"
Screwjab Dagger
2
4s
10s
spirit damage and applying 
slow. 
x0.8
50
-35%
1
