The Breachstone
A month-long siege against one colossal, sealed stone — worked a handful of strikes at a time, wall by hard-gated wall, for as long as it takes to earn the gear that finally cracks it. This chapter covers the whole shape of the siege. What’s actually sealed inside it, it does not say.
01 Finding the Sealed Grotto
Somewhere in The Lower Dark, the scope has a return it refuses to read — logged from day one as a sealed contact and nothing more. That fault has two separate locks on it, and both have to give before you can fly through:
- You have to find it. The mouth is a hidden passage in the trench wall like any other — no marker, no arrow. Fly your own lamp close enough and it’s recorded, the same proximity rule as everything else the dark hides. See The World.
- The signal has to unjam. Even found, the fault stays sealed until your Pilot ladder crosses Level 15. Below it, the Chart keeps drawing a sealed contact and nothing more; cross it and the same water reads as a real passage, ready to fly into. See Pilot & Classes.
The water on the far side runs warmer than the trench around it, on a rhythm too slow to be tidal. That much the scope has always been willing to tell you.
02 The daily strike cell
Once inside, a console of its own lights up on the left of the screen — nowhere else on the HUD. It holds the whole siege: how much of the stone is left, how many strikes you have today, and what’s fitted to swing them.
Striking the stone
- 12 strikes a day. The cell refills whole at the next day boundary — a siege measured in days, never in an evening of grinding.
- X to aim, X to swing — the same two-press rhythm as throwing a Specimen Pod. An arc sweeps, and where you catch it decides how hard the blow lands.
- A better mount chips harder. Every strike’s base damage scales with the claw or harpoon fitted in your claw slot — the same equipment that already decides how well you gather everywhere else in the water.
03 Five walls, each hard-gated
The stone doesn’t simply drain. At 90%, 75%, 50%, 25% and 10% integrity, the strike you’re about to land instead erupts a wave of guardians — and every wave has its own minimum mount tier. Swing anything weaker and the blow doesn’t glance, it glances off: the console says so outright, names the tier you’re missing, and the wall doesn’t move until you come back better equipped. This is a content number, not a soft suggestion — it’s the entire reason the rest of the power loop matters.
The five thresholds
| Integrity | Wall | Gate |
|---|---|---|
| 90% | The First Crack“The face opens a hand's width and the water goes bright.” | Coastal-grade |
| 75% | The Face Gives“A slab the size of the drone calves off and falls out of the lamp.” | Twilight-grade |
| 50% | Half the Stone“The crack network reaches the ceiling. Something inside answers it.” | Midnight-grade |
| 25% | The Last Quarter“The light no longer leaks. It pours.” | Abyssal-grade |
| 10% | The Wall Fails“What is left of the stone is a shell around a lamp.” | Leviathan-grade |
Each gate matches the equipment rarity ladder exactly — Coastal through Leviathan — so “is my mount strong enough for the next wall” is always answerable at a glance from the tier already printed on the item card.
04 Guardians
A wave is a swarm, not a boss — a handful of hostile bodies that home in and work on your hull strain, the same meter the Lower Dark’s own pressure already fills. One clean strike drives a single guardian off for a few seconds; it doesn’t clear the water by itself. Clearing a wave is either outlasting it on the clock, or landing enough strikes to drive the whole thing off outright — whichever suits how you’d rather fly.
Let the strain meter fill all the way inside the Grotto and nothing about your progress is lost. There’s no death and no confiscation: the wave is abandoned, the wall you were working stays exactly where it was, and the water simply shoves you back out through the mouth you came in by. Being driven out costs you the trip back down — nothing else.
05 Materials, and the mounts they craft
Every wave you clear — whether by outlasting it or beating it down — drops a batch of materials found nowhere else in the game. Bank enough of one kind and the console’s own forge lets you build the very mount the next wall is asking for.
Exclusive materials
| Material | Rarity | Dropped by |
|---|---|---|
| Fracture Scale | Twilight | First Crack |
| Gaunt Tooth | Midnight | The Face Gives |
| Medusa Filament | Abyssal | Half the Stone |
| Elite Carapace | Abyssal | The Last Quarter |
| Warden Plate | Leviathan | The Wall Fails |
Craftable mounts
| Mount | Tier | Costs |
|---|---|---|
| Gaunt Claw | Twilight-grade mount | 8× Fracture Scale |
| Filament Harpoon | Abyssal-grade mount | 10× Medusa Filament, 6× Gaunt Tooth |
| Warden Harpoon | Leviathan-grade mount | 8× Warden Plate, 12× Elite Carapace |
When the stone reforms for its next season, your integrity and its waves reset — your banked materials and every mount you’ve already crafted never do. A season is a new wall, never a confiscation.
06 Breach Shards
A shard is the one way to move the siege faster than your own strikes can, and the game is plain about exactly what that buys: “It moves the day forward. It never moves the wall.” Ring one against the stone and the whole rock answers at once — a week’s patient chipping delivered in a single note. It cannot touch a guardian, cannot skip a wave, and cannot open a gate your mount isn’t rated for.
The caps, plainly
That cap is a promise, not a limitation somebody forgot to lift. However patient or however impatient you are, the siege still asks the same thing of everyone in the end: fly better, hunt harder, build the next mount. A shard only ever buys you time you’d have earned anyway.
07What’s behind the stone
Something is sealed inside — the water says so from the moment you first find the fault. What it is, this manual won’t say. What the manual will say is the shape of the ending: the last wall gives way, whatever has been waiting behind it wakes, and there is one final fight before the stone reforms for a new season with something different sealed inside next time.
That much is structure, not spoiler. The rest is exactly what a month of strikes is for.