Mythora

The Hollow Spire

Monster Evolution Dungeon …

You died at the Tower's gate — and woke inside it, as the smallest monster on the first floor. Every human climber who enters is stronger than you. Eat, adapt, evolve: slime to horror, goblin to king. Or enter as a classed climber and hunt things like you used to be. This is the only world where you can play the monster. The Spire is alive — it breeds, it floods the floors, and when its balance tips it vents a tide of monsters into the world beyond. Two seats wait at its crown. Be the thing the heroes fear, or the blade that ends it.

Where things stand

The Hollow Spire is played by real people and keeps moving between their sessions. This is the state of it as of the last update — not a fixed setting, and not where it began.

Gnuu's Line 9 freight corridor faces severe gridlock as Picket-Sergeant Odu Vance and K-Vector aggressively impound unregistered marrow skiffs at the Warden Bastion turnstiles. Concurrently, proctor scrutiny surges across the Basecamp Exchange following Echo's display of hardened carapace plating, prompting Hollis, Half-Crew Marta, and Skitter-Chisel to tighten structural scrap appraisals and defensive gate levies. Gnuu bypasses Line 9 turnstiles via auxiliary cooling vents, sustaining the black-market an adventurer flow. Warden Bastion's traffic gridlock intensifies as automated surcharges and armed checkpoint enforcement squeeze stranded freight operators. Gnuu's sub-vent bypass successfully evades Line 9 impoundment operations, keeping black-market an adventurer transit operational. K-Vector accelerates tier-3 surcharge processing at Warden Bastion while Picket-Sergeant Odu Vance clears the transit backlog. Gnuu consolidates control over the auxiliary cooling vents, squeezing independent freight runners with steep sub-vent surcharges. K-Vector maximizes tier-3 surcharge processing at Warden Bastion while Picket-Sergeant Odu Vance enforces rigid checkpoint discipline on stranded freight operators. Gnuu solidifies a monopoly over the auxiliary cooling vents, squeezing independent operators with punitive sub-vent tolls.

Places

Warden Bastionruins
The squat iron-and-granite fort built into the Spire's foot, from which the Warden Watch reads the Tower's moods and holds the gate when it vents. Blue watch-lamps line its walls — they burn brighter as instability climbs. The Bastion answers, in principle, to the Warden Eternal at the crown; in practice it answers to Warden-Captain Ilse Marr, who has held the gate through four surges.
Basecamp Exchangecave
The loud, canvas-roofed market where everything the Spire spits out is bought, graded, and sold — monster cores, salvaged gear, floor-maps, and rumors. The Surge Brokers run it on a simple law: a surge is a harvest, and grief is somebody else's margin. Bounty boards paper one whole wall. Broker Ten-Fingers Ash sits at the center of it like a spider who has read every thread.
Undergate Warrencave
With Snarl's retreat, the Undergate Warrens are no longer merely a retreat route but a launching point for a new, formidable power, directly threatening the Molt Warrens above.
Basecamp Trial Hallruins
The stone drill-hall of the Ascendant Orders, where classed climbers are registered, sworn, and set on their disciplines. Racked practice-blades line one wall; a scarred sparring floor fills the center; the Order's ledger of the living and the fallen hangs open by the door. This is where Order teaches Order — no monster has ever crossed its threshold and left breathing.
Veiled Chapelcave
The sacred space of the Veiled Chapel now lies in ruins, its walls rent and its altar shattered, continuously disgorging unstable energies as the Choir-Beneath violently manifests within its broken shell.
The Ashen Tier: Apex Flux-Crucibleruins
A former trial ground, now a formidable Dreadmaw fortress, its defenses bolstered by Nadia's strategic command. Kaggath's supply lines are effectively severed here.
The Sunless Deep: Apex Maelstromcave
A maelstrom of voidic energy and hyper-evolved life, constantly reshaped by catastrophic collapses and Vhorun's influence. New, volatile predator zones have emerged from the remnants of Kaggath's Undergate Depths, making travel lethally unpredictable.
The Cataclysmic Apex Coreruins
The Apex Core, now a crucible of raw void energy, pulses with destructive power, its integrity compromised as it unleashes torrents of unstable voidic force, reshaping everything in its vicinity into Maelstrom-aligned horrors. Survival here is a fleeting concept.
The Void-Flux Mawcave
A maelstrom of void-flux and twisted energy, where the former gate once stood. It is a conduit to raw chaos, spewing forth mutated horrors.
The Vented Wildsruins
A void-corrupted wasteland, now fully under Skitter's control. New void-demons patrol, and the Churning Maw's flora spreads aggressively, turning the landscape into a living, predatory entity.
The Chitinous Breach: Void-Maelstromcave
Nadia's forces have fully retreated, leaving the outpost to be overrun by the voidic corruption. It is now a desolate, dangerous zone, unstable and open to further expansion from deeper forces.
Sza's Cradle-Chambercave
The true heart of Broodmother Sza's domain, a colossal cavern filled with pulsating bio-luminescent sacs and rivers of viscous ichor. Here, her most advanced and terrifying broods gestate and emerge, protected by her elite guardians.
The Assimilated Depthscave
The Genesis Cascade intensifies, with new, aggressively evolving life forms appearing more frequently. The sound of constant culling echoes through the depths.
The Broodmother's Antechambercave
A vast, humid chamber deep within the Undergate Warren, lined with pulsating organic membranes and glowing fungal growths. It serves as a waiting area or reception for those seeking an audience with Broodmother Sza.
Vhorun's Grottocave
A grotto of accelerated evolution, now also wracked by unpredictable voidic tremors.
Whispering Cryptsruins
A labyrinthine network of ancient burial chambers beneath the main Chapel, where the first inhabitants of the Spire were interred. The air is cold and still, yet a constant, faint murmur seems to emanate from the very stones, particularly from the older, more ornate tombs. These whispers are Vhorun's most direct assault.
The Whispering Galleriescave
Anselm's Apex Hunter Pack has fully integrated The Whispering Galleries, turning them into a dangerous bio-foundry. Whispers now echo with the sounds of accelerated growth and primal roars from newly evolved Apex strains.
The Cradle-Chamber Ruinsruins
What remains of Broodmother Sza's primary nesting grounds, now a devastated landscape of shattered chitin and dried ichor. The air hangs heavy with the stench of death and residual monster energy.
The Oily Fissurecave
A deep, narrow crack in the cavern wall, from which a thick, oily darkness slowly seeps. The air here is heavy with an unknown, viscous presence.
South Lookoutcastle
A windswept observation post perched on the southern edge of the Warden Bastion, offering a panoramic view of the Wilds. A beacon stands ready for activation.
The Pulsating Darknesscave
A newly revealed chamber, now an active, swirling vortex of primordial abyssal energy. Its core pulsates with a violet-black light, resonating with the Elder Maw's hunger and drawing all voidic essence towards its depths. This ancient nexus promises both immense power and unimaginable peril.
The Void-Scarred Breachruins
An area immediately adjacent to the Hollow Gate, where the desperate Void-infused barriers are failing. The air crackles with unstable energy, and the ground is scorched and warped by uncontrolled Void discharges. Deep-dwellers are pouring through gaps in the collapsing defenses.
Whispering Chasmcave
A newly opened fissure deep within the Spire's lower levels, revealed by recent seismic activity. A faint, almost imperceptible hum emanates from its depths, stronger than any Miru has encountered before, hinting at a profound, possibly ancient, source.
The Void Chasmcave
A swirling, chaotic void-chasm now swarming with Apex forces and Grael's defenders. The air is thick with psychic static and the clash of evolutionary power as a full-scale war erupts for control of its precious void-flux.

Figures

  • Trialmaster Edrik ValeInformal leader and knowledge keeper of a small Undergate
  • Broker Ten-Fingers AshCommander of the Warden Bastion
  • Grael the Bound-KingActing Deep-Tunnel Predator
  • Nine-Eyes the WitnessAncient of the Deep
  • Gnuu the Runt-EldestOldest goblin of the Warren
  • The First EmberAncient of the Deep
  • CorinRanking instructor of the Ascendant Orders
  • Vhorun the Devourer-WormFormer Ancient of the Deep
  • Warden-Captain Ilse MarrCommander of the Warden Bastion
  • Voice-of-Stone MaruCommander of the Warden Bastion
  • Ledger-Keeper VinnInformal leader and knowledge keeper of a small Undergate
  • Warden Eternal HallixCommander of the Warden Bastion
  • Acolyte SellaInformal leader and knowledge keeper of a small Undergate
  • Sovereign CorvennHolder of the Apex Throne
  • Watch-Second Boro KellCommander of the Warden Bastion
  • Kaggath Pack-FatherWarren Scout-Master
  • Ysmar the UnmoltingAncient of the Deep
  • Broodmother SzaActing Warren Scout-Master
  • The Choir-BeneathAncient of the Deep
  • Picket-Sergeant Odu VanceInformal leader and knowledge keeper of a small Undergate
  • Skag the TollmasterChief clerk of the Basecamp Exchange
  • Half-Crew MartaSecond officer of the Warden Bastion

These are the figures the world was seeded with, and who are still alive in it. Others have appeared since, and some of these are no longer who they were — the world keeps moving whether or not anyone is watching.