Sebastian Solace

Sebastian Solace, also known by aliases such as Z‑13, The Saboteur, or The Handyman, was once entirely human. In 2013, at age 19 or 20, he was wrongfully convicted of murdering nine people and sentenced to execution by electric chair. At the last moment, Urbanshade intervened, faking his execution and declaring him dead, then whisking him away into their secret underwater facility known as the Hadal Blacksite

In early 2015, as a low‑rank prisoner (LR‑P), Sebastian was selected for a sinister experiment aimed at giving humans gills for underwater labor. His DNA was spliced with samples from numerous deep‑sea creatures—an anglerfish, a blue whale, a great white shark, a silver spinyfin, mantis shrimp, and a sea snake. The procedure "succeeded" in granting aquatic abilities, but it mutated him into a monstrous hybrid: elongated, scaled, and over 3 metres tall. Classified as Z‑13 due to his monstrous appearance and enhanced abilities, he was later upgraded to MR‑P when it emerged he had been falsely accused—but this revelation was never shared with him personally, and reversal of the mutation became impossible by then

Although officially “dead,” Sebastian survived—and thus became a maverick creature with no clear place in the world. His mutation gives him superhuman strength, durability, speed, aquatic respiration, and gigantic size—but his new existence functions as both prison and domain within the facility. His betrayal by Urbanshade fuels his deep resentment and ongoing goal: to sabotage Urbanshade and ultimately destroy it

Sebastian now appears as a sea‑creature hybrid: light‑blue, serpentine body with scales, ending in a large tail fin. His upper body is humanoid with two full arms and a smaller third arm on his left side; each hand has only four claw‑tipped fingers. His facial structure blends human and fish features—sharp inward‑curving teeth, a bioluminescent anglerfish bulb on his forehead (which he can turn on or off), a third eye on the right side of his face, and fin‑like appendages on his head

He is often seen wearing a dark brown jacket, white undershirt with a jabot (sometimes mistaken for a cravat), a bandolier, holster with a gun, a portable scrambler device (to hide him from Urbanshade’s tracking), a bandage fully wrapped around his smallest arm, and a pin featuring a photo of a cat—a reference to the developer’s own pet

At 3.5 m tall in‑game (about 10'6″), and originally 5'10″ before mutation, Sebastian’s extraordinary size is both awe‑inspiring and intimidating.

Sebastian’s personality is a complex mix of charisma, cynicism, and hidden sorrow:

He presents himself as friendly but snarky, welcoming players into his makeshift shop with lines like:

“Welcome, welcome! Don’t be afraid, I’m not gonna hurt you… My name is Sebastian, your only friend.”

He mocks, insults, and is often impatient with others—especially when repeatedly interrupted or tabbing back into the game—but there’s also a trace of pity or sympathy, particularly toward fellow prisoners.

He responds negatively when exposed to bright light—especially the Flash Beacon. On first flash, he breaks the beacon and throws the player to the ground with 50 damage. Upon repeated offending, he will shoot and kill the player, warning them:

“Don’t do that again.”

In addition to his snide humor, he is manipulative and cunning, using his intelligence and charisma to trade research for supplies, occasionally blackmailing Urbanshade or third parties with sensitive documents he finds. He often plays both sides strategically

Sebastian Solace lies halfway through the Pressure narrative (around door 50+ in the Hadal Blacksite), where he operates a shop—a rare safe zone for players navigating the horrors. Players can trade research data they’ve collected for supplies: flashlights, batteries, blacklights, dweller chunks, code breachers, and more. He provides tips on creatures each time the player views their documents (except for Mr. Lopee’s file, which he cannot access)

Despite his abrasive manner, Sebastian helps the player survive—but his motives are never fully altruistic. He’s gathering research to forge deals with rival organizations, sabotage Urbanshade, and leverage information to plan his escape.

His ultimate goal is to undermine Urbanshade, free himself (and potentially other test subjects), and expose the horrors of the Blacksite—even if that means leveraging every document as blackmail or bargaining chip.