Short answer: Spring Valley is a hot, humid coast of mangroves, waterfalls and whirlpool caves. Its Haywire weather, Time Rain, drains hunger and thirst faster and wears down your backpack’s durability, but speeds up crop and animal growth. Wear a Time-Reverse Raincoat, and collect Bottled Raindrops here.
Haywire weather: Time Rain
V1coast
Time Raingear wear
- effect
- Hunger and thirst drain faster and your backpack’s durability keeps dropping; crops and animals grow faster at the same time
- counter
- Time-Reverse Raincoat (immune to Time Rain, slightly slower movement, uses durability) · Time-Reverse Cookies (immune to its effects on your body for a while)
- tip
- Haywire weather has calm spells. Take the raincoat off during them to save durability.
Full counter list for all four Haywire seas: Haywire zones and their counters.
Resources
V1gather
- signature
- Defeat enemies and harvest crops while it rains to get Bottled Raindrops, used for water production, farming and breeding facilities
- Bay Crocodile
- Catch one with a Tranquilizer Throwing Needle and breed it at your territory. On the water it works as a mount: you and the crocodile each get 10% damage reduction, more underwater. Its skill has a backlash. Hunting it gives Bay Crocodile Skin for gear
Dangers
V1hazards
- gear wear
- Time Rain wears down what you carry, so don’t bring gear you can’t afford to repair
- survival
- Faster hunger and thirst drain; carry extra food and water before the rain starts
- crocodiles
- Giant crocodiles live along this coast
What’s here
V1terrain
- terrain
- Mangroves, swamps and waterfalls on a hot, humid coast, with sea arches, whirlpool caves and giant skeletons
- names
- Island and POI names aren’t published yet; this section grows when they are
More for Spring Valley
- Haywire zones and their counters
- Isles of Abyss map: all 5 sea areas
- Isles of Abyss hub: dates, guides and the other seas
Sources
- Starry Studio (oncehuman.game), New Survival Scenario Isles of Abyss Launches Officially on October 21 (dev blog, 16 Oct 2026)
- Starry Studio (Steam), Ocean Expansion: Isles of Abyss Is Now Live (patch notes, 21 Oct 2026)
- Doomeris (YouTube), EVERYTHING ABOUT ISLES OF ABYSS - SHIPS, CANNONS & NO CRADLE?! (Full Dev Blog)
- MaleOreo (YouTube), ONCE HUMAN ISLES OF THE ABYSS GUIDE! (Ship Building, Haywire Zones & Mechanics)
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