> Spoiler warning: This article describes Katia's story through This Inevitable Ruin, including the deaths of Hekla and Eva, the Crown of the Sepsis Whore conflict, and Katia's departure from the active crawl.
Katia Grim, whose full name is Katia Grimmsdottir, is an Icelandic crawler, former art professor, Doppelganger, and one of the principal members of the Royal Court of Princess Donut. She enters the main group on the Third Floor as a poorly prepared level-nine crawler whom Hekla has asked Carl and Princess Donut to protect. Her race and Monster Truck Driver class eventually make her a highly durable mobile fighter, vehicle, engineer, and rescue specialist. She later leads a party of her own and becomes one of the coalition's senior field commanders.
Katia's history is shaped by repeated attempts by other people and by the dungeon itself to turn her need for belonging into leverage. Hekla uses Katia as bait in a plan against Carl; Eva exploits intimate knowledge of Katia's life and addiction; and the Crown of the Sepsis Whore makes Katia's survival mechanically incompatible with Donut's. Katia nevertheless develops from a dependent recruit into a leader who chooses her own obligations. At the end of the Ninth Floor, she uses the Orchid of Eileithyia's Grace to become human and pregnant, making herself ineligible to continue as a crawler and allowing her to reach the surface facility where the crawl's displaced children are held.
Life before the collapse
Katia worked in Iceland as an art professor. She knew Eva through the university in Reykjavík, while her partner Fannar was a fellow professor. Katia and Fannar had planned to adopt a child together, but their relationship ended after he had an affair with a student and Katia reported him. The institution did not meaningfully punish Fannar, and he continued to exert influence over Katia's life after their separation.
Katia had previously struggled with addiction but had remained clean for ten years. She could not have children and planned to adopt instead. She later developed cancer, which was detected early enough for treatment but became another obstacle during the adoption review. Katia attempted to adopt Annie, a terminally ill nine-month-old girl whose mother was imprisoned. Fannar disclosed Katia's old addiction and concealed illness to the adoption authorities, helping cause the application to be rejected. Katia was still able to visit Annie in the hospital, and her memory of holding the child became both a source of comfort and the center of her later relapse inside the dungeon.
After the collapse, Katia entered the dungeon with Eva and became part of Hekla's all-female group, Brynhild's Daughters. Early broadcast footage depicts her as frightened and dependent on Eva during combat. When a male crawler grabbed Katia after Hekla expelled him from the group, Eva stabbed and killed him, receiving a player-killer mark. Katia came to regard the Daughters as her protectors and later credited Hekla with saving her life.
Doppelganger and Monster Truck Driver
The transition to the Third Floor separated Katia from the Daughters. Eva completed character creation first and left while Katia was still transforming. Katia chose the Doppelganger race, an unusually demanding form that her guide had failed to prepare her to use. Unlike a changeling, a Doppelganger does not assume a stock race and gain its powers. Katia reshapes her own body and equipped gear like clay, using a fixed quantity of mass to reproduce a desired form. She can imitate the appearance of a creature or object, but she does not automatically acquire its nonphysical abilities.
Equipped armor becomes part of Katia's available substance, while her weapon remains separate. She can also incorporate additional material into a storage apparatus and use it to become much larger. Every shape has to be formed deliberately, and early attempts leave details such as her face, hair, clothing, and boots visibly wrong. Practice makes the process faster and more precise, though rapid changes remain painful. The race later lets her conceal injuries by replacing missing anatomy with shaped material, a capacity so effective that even close companions do not realize how much of her original body has been lost.
Katia's Monster Truck Driver class is an Earth-themed Juggernaut build combining features of the Staunch Barrier and Jouster classes. It gives her exceptional Constitution and useful Dexterity but comparatively poor Strength, Intelligence, and Charisma at the time Carl first examines her. Her defenses increase as her speed rises, favoring charges and vehicle-like movement. Second Fuel Tank can absorb damage and return some of it once during a fight, while Rush turns her body into a battering ram. Pathfinder helps her locate stairwells, and an Earth Hobby Potion gives her practical knowledge of engines. On the Sixth Floor she adds the HAZMAT endorsement without changing the name of her class.
The build initially contains a mismatch: Katia can withstand punishment but lacks the strength and experience to prevent stronger enemies from moving or restraining her. Carl, Donut, and Mordecai teach her to exploit the interaction between speed, mass, armor, and shape. She gradually develops forms that work as shields, storage compartments, weapons, transport, and heavy machinery. Her combat identity becomes less that of an ordinary shapeshifter than a mobile armored platform able to redesign itself for a particular operation.
Joining the Royal Court
Hekla uses a joint appearance with Carl and Donut on Danger Zone with Ripper Wonton to ask them to find Katia, add her temporarily to their party, and help her gain experience. Katia reaches their Hump Town base at level nine. Her interface identifies her as human because that is the form she is attempting to reproduce, but her awkward proportions immediately reveal that she has little control of her new body.
Carl initially treats Katia as a vulnerable trainee, but she becomes essential during the final Hump Town crisis. He entrusts her with a remote detonator, and when a magical blast leaves her outside the Desperado Club, Carl and Donut refuse to abandon her. Katia ultimately triggers their prepared charge, rejoins them, and descends with the party. She appears with Carl and Donut on Odette's program after the floor and is formally incorporated into Donut's Royal Court rather than returned immediately to Hekla.
On the Iron Tangle, Katia contributes information gathered through her continuing contact with the Daughters and grows increasingly capable at mechanical transformation. She also begins to challenge Carl's tendency to decide what risks other people may take. That conflict becomes important when more than a thousand crawlers are trapped near Station 101. Katia proposes attaching herself to the front of a captured Vermillion Line train as an insulated, reinforced plow. Carl initially objects that Hekla is treating her as disposable, but Katia insists that the design is hers and that she has chosen to attempt the rescue. The transformed Katia clears ghouls from the track while Hekla and Donut fire from the engine, allowing the train to reach the stranded crawlers.
Hekla's betrayal and death
The rescue also exposes Hekla's concealed attempt to use Katia against Carl. Hekla fires two Dirty Little Phased Bolts into Katia's transformed body. The bolts hide themselves and their wounds, cause temporary amnesia, and produce a bleed effect designed to obscure the shooter's responsibility if the victim dies. The healer Silfa delays treatment until Hekla permits it and then withdraws when Eva orders her to stop. Donut's enhanced vision reveals the attack, and Carl finds and removes the bolts before Katia dies.
Eva admits that Katia was being used to provoke Carl's temper, while Hekla describes the attack only as a mistake. The full intended sequence is never confessed, but Hekla had already shown interest in recruiting Donut and gaining access to Mordecai while excluding Carl. Silfa also reveals that her daughters had been positioned outside the engine cab with instructions to attack Carl if the confrontation escalated.
Katia awakens with incomplete memories and initially assumes the shooting must have been accidental. Eva then discloses the manipulation, orders Katia to return to the Daughters, and mocks her failed adoption and relationship with Fannar. Katia activates Rush against Eva. The ability carries her slightly off line, and she strikes Hekla instead, killing the second-ranked crawler against the train wall. The death is accidental, although dungeon recap programming later edits it into a simple act of revenge.
Katia receives Hekla's bounty, rises sharply in level, and gains a distinctive golden player-killer skull. She also loots the Enchanted Repeating Crossbow of the Scavenger Mother of Mothers. The weapon grows faster and more damaging for each woman in the wielder's party, up to thirty, explaining part of the combat advantage Hekla gained from the Daughters' size. It is less powerful in Katia's smaller party, but remains her signature ranged weapon. Hekla's death leaves Eva in nominal command of a rapidly dissolving organization and makes Katia feel responsible for every later person Eva kills.
Engineering and independent command
On the Fifth Floor, Katia's technical and analytical skills become as important as her durability. She works with Carl at the upgraded engineering table to design the Royal Chariot, sketching the tracked suspension and helping build a portable vehicle suitable for sand. The pair also consider using its chassis with Katia herself as the body of a larger machine. During the Gate of the Feral Gods operation, Katia recognizes that the times on the artifact's watches correspond to locations, records the combinations, and determines how the gate components can be arranged without necessarily releasing a creature on the opening side.
Katia joins Carl, Tran, and Vadim aboard the Akula to recover a gate component. When the Lusca attacks the submarine, Katia helps execute the improvised internal assault that combines Carl's Protective Shell, a rocket, and a giant saw. Her coordinate work then supports the larger rescue network that moves trapped crawlers out of failing Fifth Floor bubbles.
Near the floor's end, Katia decides that the coming conflict with Eva requires a group outside Carl and Donut's immediate operations. Former Daughters are returning to Eva because other parties will not accept them, and Silfa and her biological daughters have already died after doing so. Katia concludes that the survivors need an alternative protector. She arranges to work with Louis, Firas, Gwen's team, Florin, Bautista, and others. She does not reject the Royal Court, but uses the new guild system to retain shared personal-space access while taking responsibility for a separate force.
On the Hunting Grounds, Team Katia operates as a coordinated coalition unit rather than an offshoot awaiting Carl's orders. Katia, Bautista, Florin, Imani, Elle, and their allies pursue Eva, rescue threatened crawlers, and work parallel objectives while Carl and Donut follow the Signet storyline. Katia formally leaves Donut's party after the guild upgrades are secured. Her developing relationship with Bautista becomes romantic during the floor, and the two remain partners despite later strain caused by Katia's addiction and by the dangerous escape plan attached to the crown.
Eva, addiction, and the crown
Eva deliberately exploits Katia's old vulnerabilities. Blitz sticks left on the body of a dead former Daughter allow Katia to relive the memory of holding Annie. Katia hides her use from almost everyone except Bautista, and the habit intensifies under the stress of the Hunting Grounds. After the Butcher's Masquerade, Katia and Li Na find Eva alive but buried and critically injured. They remove Eva's escape ring and concealed blade before killing her, ending Katia's long pursuit.
Eva makes one final attack as she dies. She takes the lost Crown of the Sepsis Whore from the back of her armor and places it on Katia's unprotected head. Katia had given away a sponsor-supplied hat that could have prevented the act. The crown permanently places its wearer in the Blood Sultanate's line of succession, and its Ninth Floor rule prevents a crowned heir from leaving while another living heir remains. Because Donut had worn the crown earlier, only one of them can descend to the Tenth Floor unless the condition is broken.
Katia enters the Eighth Floor carrying both that crisis and a worsening dependence on multiple drugs. She secretly follows instructions connected to Huanxin Jinx and directs Carl to restore Yemaya's shrine, creating a route to a boon from the childbirth goddess Eileithyia. The possible outcomes include greatly increased Constitution, temporary service as a celestial attendant on the Twelfth Floor, or restoration to her birth race followed by pregnancy and removal from the game.
To obtain the orchid that grants the boon, Katia must open the Lock Box of the Night Wyrm. Its final requirement sends her and Carl into the Guild of Suffering to assassinate Astrid and recover the body. Katia undertakes the mission while severely ill from her drug use and treatment. The decision alarms Bautista and Imani, but the job is time-sensitive and Katia insists on continuing. She and Carl adapt their trap plan when Astrid takes an unexpected route, kill the target inside the Desperado Club, and secure the Orchid of Eileithyia's Grace.
Recovery and Faction Wars
Katia's final addiction treatment occurs during the Ninth Floor ceasefire. A linked procedure intended to treat Katia while containing Shi Maria inside Carl accidentally draws Carl into Katia's memory of the failed adoption. He witnesses Fannar's intervention, the rejection, and Katia's last hospital visit with Annie. The experience explains why dungeon drugs capable of recreating that moment had such power over her. The treatment is not portrayed as an immediate erasure of trauma, but it allows Katia to enter Faction Wars without the same chemical dependence.
During the war, Katia commands forces independently while remaining part of the leadership circle around Carl, Donut, Imani, Elle, and Mordecai. She deploys with Bautista and Florin, supports retreat corridors, joins high-risk raids, and continues preparing for the orchid ceremony. The crown makes her a potential target even among supposed allies: Princess Vinata privately offers to eliminate Carl's “Katia problem,” but Carl refuses to authorize the killing. Katia's allies instead preserve the plan to remove her from the succession conflict without sacrificing either woman.
The expected celestial-attendant solution remains dangerous because it would place Katia in Huanxin Jinx's Twelfth Floor court. Katia also carries an alternative purpose. She has learned that children and pregnant women removed from the crawl are held in a surface facility, and she believes those children are isolated and in danger. Pregnancy would not merely save her from the crown; it would place an experienced adult survivor among them.
Departure from the dungeon
At the end of the Ninth Floor, Emberus begins destroying the floor before the group has completed its farewells and preparations. Katia consumes the orchid, falls unconscious at one percent health, and awakens when Eileithyia appears under Huanxin's control. Donut uses Laundry Day to tear Huanxin from the goddess's form, and the group kills the sponsor while Eileithyia is temporarily frozen by the unresolved boon choice.
Freed from Huanxin's immediate coercion, Katia rejects both increased Constitution and celestial service. She asks to be made pregnant so that she can reach and protect the children on the surface. Eileithyia restores Katia to her original human race and requires a human father. The goddess indicates that Katia's first preference is ineligible but does not name that person. Katia asks Louis, who agrees.
The restoration reveals the injuries Katia had hidden through her Doppelganger body: her entire right arm, left leg, part of her right leg, and one ear are missing. Katia had anticipated the change and built cybernetic replacements; Bautista completes them in the crafting room and brings them to the ceremony. Eileithyia fits Katia with the pregnancy boon, after which the System marks her ineligible. Katia leaves the active dungeon as a human and expectant mother, ending the crown's immediate threat to Donut while beginning a separate mission among the children held above.