Coral Fibers Overview and Material Properties
Coral fibers serve as a substitute for woven fabrics. Produced by threshing coral growth, the material gains flexibility and durability during storage. It retains warmth and provides moderate resistance to fire and decay.
Coral fibers represent a valuable crafting resource across multiple equipment tiers. The material stacks up to a maximum stack of 50 units in cargo hold storage. Traders purchase Coral fibers for 5 coins, while purchasing them costs 15 coins.
Threshing Coral Growth and Required Tools
Gathering Coral fibers requires harvesting submerged petrified coral formations in shallow waterways. The 
Serrated axe edge is a reinforcement plate made from the jaw of a large predatory fish. Its naturally sharpened edges inflict ragged wounds and improve efficiency when smashing crates, breaking rotten doors, and threshing coral overgrowth.
Anglers can install the Serrated axe edge at the rigging bench in Betsy. Using this reinforced cutting edge allows efficient clearing of dense coral thickets to collect raw fiber strands. Bait and upgrades for weapons, fishing gear, and tools are crafted at the Craft table in the Dry Dock.
At the workbench, you can craft baits, fishing rod upgrades, and other items. Select a resource and press [LMB] to place it in the work area. When all required resources are placed in the work area, press and hold [F] to craft the item.
Tackle, Tool, and Vessel Recipes
Coral fibers are essential for assembling high-performance fishing tackle at the Craft table. The 
Braided Line recipe requires 1 Coral fibers, 2 
Chromatic Scales, and 2 
Rope. Crafting a 
Lockpick requires 2 Coral fibers, 2 
Metal Plate, and 1 Rope.
The 
Reinforced Rod demands 2 Coral fibers, 1 Bug slime, 1 
Jaws, and 1 Metal Plate. Assembling a 
Sliding fishing line takes 1 Coral fibers, 2 Rope, 1 Chromatic Scales, and 1 
Leeches. The 
Baitcasting Reel requires 1 Coral fibers, 1 Metal Plate, 1 
Rubber, and 2 
Gear.
The 
Coral fishing rod is an upgraded fishing rod built around a coral-fiber core. Increased flexibility and resilience make it easier to haul in larger fish and reduce the risk of line breakage. Boat modules are crafted at the Ship upgrades table in the Dry Dock.
Hull Protection requires 3 Coral fibers, 2 Bug slime, 2 Rope, and 2 Rubber. The 
Plated Hull Protection upgrade requires 4 Coral fibers, 6 Metal Plate, 4 Jaws, 3 Rubber, and 3 Bug slime. Building the 
Armored Hull takes 5 Coral fibers, 10 Metal Plate, 4 
Bone Plate, 4 Rubber, 4 Bug slime, and 1 
Bony Horn.
Vessel storage expansions also require fiber materials: the 
Small fish hold requires 3 Coral fibers, 4 Metal Plate, 2 Bug slime, 2 Rope, and 2 
Rusty Hinge. Upgrading to the 
Medium fish hold requires 5 Coral fibers, 8 Metal Plate, 3 Rubber, 3 Bug slime, 3 
Cloth, and 3 Rusty Hinge. Finally, assembling the 
Afterburner engine speed upgrade takes 6 Coral fibers, 4 Metal Plate, 2 Bug slime, and 2 Rubber.
