100 days at sea fisherman: Guide to Saving & Trading

Finding and rescuing the 100 days at sea fisherman is the first major milestone that transitions you from early-game struggle to mid-game automation [svg4uQ6ZHYI]. Before attempting this rescue, ensure you have mastered your starting tools: the harpoon for pulling in debris, the starter knife for basic defense, the fishing rod for gathering food, and your five-slot storage container [svg4uQ6ZHYI]. Once your raft reaches level 2, set your sights on the horizon and locate the only permanent landmass in the game—the distinct island with a large red roof [svg4uQ6ZHYI].

Video Highlights:

• Starting Gear: Understand how to utilize the Harpoon, Storage Container, Knife, and Fishing Rod effectively in the early game [svg4uQ6ZHYI].
• Island Navigation: Sail to the red-roofed island once your raft reaches level 2 to locate the captured fisherman [svg4uQ6ZHYI].
• Combat Mechanics: Learn how to defeat the island captors and survive the subsequent slime ghost ambush [svg4uQ6ZHYI].
• Trading Interface: See the exact method for dragging and dropping fish to complete the mandatory trading quest [svg4uQ6ZHYI].

When you arrive at the red-roofed island, you must clear out the hostile captors guarding the fisherman [svg4uQ6ZHYI]. Combat on land carries high stakes because your health does not regenerate automatically outside of your raft [svg4uQ6ZHYI]. You must rely on consumable healing items or retreat to your vessel to recover. After defeating the captors, interact with the caged fisherman to free him [svg4uQ6ZHYI]. This action triggers a sudden event where slimy ghosts ambush you [svg4uQ6ZHYI]. Defeating these ghosts yields a unique resource called Goo and unlocks the coveted Dinghy recipe, which provides a much faster alternative to your basic raft [svg4uQ6ZHYI].

| Environment | Health Regen | Danger Level | Key Hostiles | | Raft | Natural regeneration | Low | Occasional sea threats | | Red-Roofed Island | Bandages or medkits only | Medium | Island captors, Crabs | | Ghost Ambush | Bandages or medkits only | High | Slimy ghosts |

Once liberated, the fisherman becomes a vital trading partner who can fast-track your gear progression [svg4uQ6ZHYI]. To initiate trading, you must complete one mandatory trade [svg4uQ6ZHYI]. This requires you to catch a specific fish using your fishing rod [svg4uQ6ZHYI]. The trading interface can be slightly finicky: you must equip the fish so that a selection outline appears around the item in your inventory, and then drag it directly into the fisherman's trading zone [svg4uQ6ZHYI]. Dropping the fish without the active selection outline will cause it to fall to the ground [svg4uQ6ZHYI].

Completing the mandatory trade unlocks a series of highly rewarding optional trades [svg4uQ6ZHYI]. These trades allow you to exchange rare catches and crafted items for high-tier gear that cannot be easily obtained elsewhere [svg4uQ6ZHYI]. By targeting these specific trade milestones, you can rapidly upgrade your defensive and offensive capabilities [svg4uQ6ZHYI].

| Unlockable Item | Required Materials | Utility & Stats | Priority | | Machete | Crab Trap | High melee damage, replaces basic knife | High | | 10-Slot Good Sack | Sushi | Doubles inventory storage capacity | High | | Flintlock Pistol | Jar of Jelly, Flintlock Ammo | Ranged weapon, high single-target damage | Medium |

Survival in the open ocean demands efficient resource management [svg4uQ6ZHYI]. The three primary resources you must manage are Wood Scraps, Metal Scraps, and Ghost Goo [svg4uQ6ZHYI]. While it is tempting to craft a cooking spot or a crab trap immediately, your absolute highest priority should be building a Sawmill [svg4uQ6ZHYI]. The Sawmill automates your wood production, generating wooden planks passively so you do not have to spend hours manually harvesting floating debris with your harpoon [svg4uQ6ZHYI].

Once your wood production is automated, you can pivot your resources toward crafting advanced transport, such as the Dinghy [svg4uQ6ZHYI]. The Dinghy offers unmatched speed, making trips between your home base and the red-roofed island incredibly swift [svg4uQ6ZHYI]. However, the Dinghy requires fuel, which must be systematically gathered from chests scattered across the ocean's minor islands [svg4uQ6ZHYI].

| Resource Type | Primary Source | Crafting Utility | Gathering Difficulty | | Wood Scraps | Floating debris, Sawmill | Raft upgrades, basic stations | Low (Automated via Sawmill) | | Metal Scraps | Floating debris, Merchant | Advanced tools, weapon parts | Medium | | Ghost Goo | Defeated slimy ghosts | Recipe unlocks, advanced crafting | High (Combat required) | | Blue Currency | Balloon's chests, Merchant kills | Merchant trading, high-tier items | Medium |

As you expand your reach, you will encounter various minor islands and a Wandering Merchant who visits your rig [svg4uQ6ZHYI]. The Merchant is an invaluable asset who stays for exactly one in-game day before departing [svg4uQ6ZHYI]. He accepts a special blue currency, which you can obtain by looting balloon chests floating in the sea or by defeating hostile tribe members [svg4uQ6ZHYI]. Knowing what to buy from the Merchant is key to maintaining your momentum [svg4uQ6ZHYI].

When exploring minor islands, always keep an eye out for giant crabs and hidden chests [svg4uQ6ZHYI]. Crabs are an excellent source of raw food, while chests often contain vital fuel for your Dinghy or rare weapon scraps [svg4uQ6ZHYI]. Be cautious, as hostiles on these islands will occasionally attempt to steal your hard-earned resources if you leave them unattended [svg4uQ6ZHYI].

| Merchant Item | Best Use Case | Cost Efficiency | Recommendation | | Ammo Bundles | Reloading Flintlock and rifles | Highly efficient | Highly Recommended | | Metal Scraps | Fast-tracking advanced structures | Moderate efficiency | Recommended if short on time | | Medkit | Instant healing during island raids | Highly efficient | Essential for hard fights | | Wrench | Repairing structures | Poor efficiency | Not Recommended |

To progress further into the game's lore and story, keep an eye on your user interface [svg4uQ6ZHYI]. You can access your radio button at any time and click the "Locate" button [svg4uQ6ZHYI]. This initiates the main quest line, guiding you toward other lost survivors and expanding the narrative boundaries of your ocean adventure [svg4uQ6ZHYI].