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Scenarios › Isles of Abyss › Haywire zones

Once Human Haywire Zones: Mist of Deceit, Black Tide, Time Rain & Skyfire

LiveUpdated 2026-10-23 · Game v3.1.1Four seas, four Haywire weathers

By the Once Human Guide crew — a small fan team led by Yao · from patch notes + videos

Short answer: Haywire Zones are the special weather of four Isles of Abyss seas: Mist of Deceit in Reefshadow Bay, Black Tide in Misty Marsh, Time Rain in Spring Valley and Skyfire in Falling Ember. Each has a counter: the Blaze Core Lantern for the mist, the Black Tide Protective Mask for Sanity loss, the Time-Reverse Raincoat or Cookies for the rain. Skyfire has no dedicated item; tough hull materials and dodging the meteors are the answer.

Hazards on the way:Mist of Deceit · cold, short sightBlack Tide · Sanity drainTime Rain · durability lossSkyfire · meteors hit hullsin Reefshadow Bay · Misty Marsh · Spring Valley · Falling Ember
On this page
  1. The four Haywire Zones at a glance
  2. How each weather plays out
  3. Resources you only get in Haywire seas
  4. Fix: I can’t see anything in Mist of Deceit
  5. More Haywire reading
  6. FAQ
  7. What changed

The four Haywire Zones at a glance

The first sea, Fragrant Cape, has no Haywire weather. Each of the other four seas has one weather of its own. The table pairs each weather with its sea, what it does to you, and the item that counters it. Each sea’s islands, terrain and dangers are on its own page; the Isles of Abyss map compares all five.

weather sea what it does counter how you get the counter
Mist of Deceit Reefshadow Bay Cold; shorter sight, and the lower your HP the smaller your view Blaze Core Lantern (clears fog, warms you, uses durability) · Mist Core Clarity Soup (Cold Resist, see through the fog) Lantern from the Tech tree test server · recipe amounts not confirmed yet
Black Tide Misty Marsh Stardust pollution keeps deepening; Wild, Phantasmal and Mirror pollution zones appear; Sanity drops Black Tide Protective Mask (slows Sanity loss) Tech tree test server · recipe amounts not confirmed yet
Time Rain Spring Valley Hunger and thirst drain faster; durability of items in your backpack keeps dropping; crops and animals grow faster Time-Reverse Raincoat (immunity, a little slower, uses durability) · Time-Reverse Cookies (immunity for a while) Raincoat from the Tech tree test server · recipe amounts not confirmed yet
Skyfire Falling Ember Meteors damage players and buildings and heat the area; Deviants guard the big ones No dedicated item announced. Tough hull materials and dodging Iron and steel hull parts unlock through Tech

src: Isles of Abyss dev blog (2026-10-16) · patch notes (2026-10-21) · Gotcha Beast KJvFq__cWp8 @10:00, @10:22, @10:40 (test server) · MaleOreo d6qDYAK-qkQ @00:21

Two items cover temperature more broadly: the Cooling Patch removes Heatstroke, and All-Weather Stew raises both Cold and Heat resistance. One test-server guide says the fourth and fifth seas you reach have islands with extreme temperatures, and suggests cooking All-Weather Stew in bulk at your base. test server

How each weather plays out

Rmist
Mist of Deceit
effect
Temperature drops and the fog closes in. Your view shrinks as your HP falls, so taking damage makes it harder to see the next threat
counter
Blaze Core Lantern, plus Mist Core Clarity Soup or All-Weather Stew for the cold
phase II
Figures that look like you appear in the fog early-access server report
more
Reefshadow Bay
Mtide
Black Tide
effect
Stardust pollution deepens across the marsh and new pollution zones spawn in set spots. Sanity is the stat under pressure
counter
Black Tide Protective Mask; drinks such as Old Captain’s Spirit and Heavenly Calm Soup restore Sanity
catch
Gathering Black Tide Clots costs Sanity, and you get more Clots the higher your Sanity is, so wear the mask while you gather
more
Misty Marsh
Vrain
Time Rain
effect
Energy and hydration drain faster, and everything in your backpack slowly loses durability
counter
Time-Reverse Raincoat for long trips, Time-Reverse Cookies for short ones
upside
The same rain speeds up crops and animals, in the wild and on your territory. Killing enemies or harvesting in the rain gives Bottled Raindrops
more
Spring Valley
Esky
Skyfire
effect
Meteors hit players and structures, including your ship, and heat the ground around them. Large meteors come with Deviant guards
counter
No item. Iron or steel on the outer hull and bow, and steer clear of impact points
tip
Mining a meteor out brings the area’s temperature back to normal; the bigger the meteor, the harder it is to mine
more
Falling Ember · hull materials

src: dev blog (2026-10-16) · patch notes (2026-10-21) · Doomeris zIDlwmX7CPg @02:41–05:01 · Open World Games 1_YBnzhRRZ8 @03:41 (early access, sponsored)

Resources you only get in Haywire seas

Each weather comes with something worth collecting. These are why you sail into the bad weather instead of around it.

resource sea how you get it used for
Mist of Deceit Wicks Reefshadow Bay gather Mist Core Grass cannon shells, power facilities
Black Tide Clots Misty Marsh black water near spore growths; costs Sanity diving gear, water circulation facilities
Stardust Ore Misty Marsh brought in by the Black Tide not detailed yet
Black Tide Fuel not tied to one sea in the notes Drilling Well on your ship → abyssal sea oil Fuel Propeller, Generator (raises power cap)
Bottled Raindrops Spring Valley kill enemies or harvest crops in Time Rain water production, farming and breeding facilities
Skyfire Gold Falling Ember mine meteors alloy ship structures, auto-gathering facilities

src: dev blog (2026-10-16) · Grizl o5-Cq9fuLF0 @01:41 (Drilling Well → fuel)

Black Tide Fuel is listed with the Haywire resources, but you make it with a Drilling Well rather than by gathering it in one sea. One test-server guide also says the water purifier recipe now needs Black Tide Clots from the timed Black Tide pollution zones. test server How these feed into hulls, engines and generators: How to build a ship.

Fix: I can’t see anything in Mist of Deceit

Work down the list.

  1. Switch the Blaze Core Lantern on. It clears the fog around you and warms you. If you don’t have one, look for it in the Tech tree.
  2. Check its durability. The lantern wears down while it’s on. A broken lantern does nothing.
  3. Heal up. Your view in the mist shrinks as your HP drops. Topping up HP widens it again.
  4. Wait for a calm spell. Haywire weather pauses now and then; turn the lantern off then to save durability.
  5. Eat Mist Core Clarity Soup. It raises Cold Resist and lets you see through the fog without the lantern.

More Haywire reading

FAQ

Is Haywire weather active all the time?
No. There are calm spells when the effect pauses. Switch the lantern or raincoat off during them, because both use durability while active.
Do Haywire Zones change during the scenario?
Yes. The developer says the Haywire Zones change with the scenario phases, so expect Phase II to be harsher than Phase I. What exactly changes in each sea is not confirmed yet.
Where do I get the counter items?
One test-server guide unlocked the Blaze Core Lantern, Black Tide Protective Mask and Time-Reverse Raincoat from the Tech tree, and the dev blog says settlements in Reefshadow Bay hold items for dealing with the fog. Ingredient lists and amounts are not confirmed yet.
Is there an item that protects against Skyfire?
Not that the developer has announced. The official counter list has nothing for Skyfire. Use iron or steel on the outer hull and steer away from falling meteors.
The Haywire timeline on my custom server shows the wrong effect. Is that a bug?
It was. The Oct 22 fix (3.1.1) corrected custom servers where the Haywire Zones timeline showed a different effect from the one actually active.

What changed

  • v3.1.1 · 2026-10-23Page created.

Sources

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