100 Days at Sea Quests Guide: Every NPC Task, Reward, and Completion Strategy

Roblox's 100 Days at Sea drops you onto a raft in open water and dares you to survive until day 100. Staying alive is only half the challenge, though — 100 Days at Sea quests are what actually push a run forward, converting your hours afloat into pearls, chests, badges, and endgame gear. This 100 Days at Sea quests walkthrough explains how the objective system works, what the Fisherman and Professor Erik expect from you, and the order veteran players recommend tackling tasks for the fastest, safest run.

The game comes from Stranded Devs, a survival/adventure experience released in 2025 that receives steady content updates. Because patches frequently add new NPCs, islands, and objectives, exact quest details can shift between updates. Everything below reflects current community reports, and anything uncertain is flagged as player experience rather than confirmed fact. If you want to verify specifics yourself, you can play free on the official Roblox website or browse the game's community-maintained Fandom wiki.

How 100 Days at Sea Quests Work

Unlike linear quest games, 100 Days at Sea weaves its objectives into the survival loop itself. Tasks come from the NPCs scattered across the ocean, and the game's notification system tracks your progress as you fish, craft, explore islands, and survive the night. Community reports describe the setup as a mix of character-driven tasks and milestone objectives that unlock naturally as your day counter climbs toward 100.

The key is understanding how each system feeds the others. Fishing earns food and quest items, crafting turns materials into gear you need for harder tasks, and boats unlock the islands where certain objectives live. Here's how the pieces fit together:

The practical takeaway: check your notifications after every major action. Players who ignore that log routinely miss completed objectives and leave rewards unclaimed, which slows the entire progression curve.

Quest Givers: The Fisherman, Professor Erik, and Other NPCs

The community wiki currently documents two named characters — the Fisherman and Professor Erik — with additional NPCs like Muku Muku appearing in the game's character roster. The Fisherman anchors the fishing-focused tasks, while Professor Erik handles the science-flavored objectives that lean into the game's potions and experiments. Per player experience, talking to these characters is how most quest chains begin, so locating them early should be a day-one priority.

Because the wiki is still growing (roughly two dozen pages at the time of writing), treat any third-party quest list as a snapshot rather than gospel. Updates routinely rework task requirements, and the in-game dialogue is always the most reliable source for what an NPC currently wants.

100 Days at Sea Quests Walkthrough: Phase by Phase

Since the day counter structures everything, the smartest way to approach 100 Days at Sea quests is in three phases. This roadmap reflects the general order community players follow, and it front-loads survival basics before pushing into the game's stranger content — pirates, alien technology, and the corruption endgame.

Early Game (Days 1–15): Foundation Tasks

Your first stretch is about survival infrastructure. Craft basic tools, establish a food supply, and complete the opening tasks from whichever NPC you find first. The Fisherman's early fishing objectives double as your food income, so they're never wasted effort. Above all, respect the night — hostile entities like the Angler are the leading cause of early-run deaths, per community reports.

Mid Game (Days 15–50): Boats, Islands, and Combat

Once your raft is stable, progression shifts outward. Upgrading your boat unlocks island exploration, which opens chest hunts, weapon crafting, and armor quests. This is also where entity encounters intensify, so a crafted weapon should precede any long voyage.

Late Game (Days 50–100): Corruption and Alien Tech

The endgame leans sci-fi. Laser weapons, alien armor, and the corruption portal represent the final tier of content, with the toughest badges and rewards reserved for players who pushed through all three phases.

Quest Rewards: Pearls, Chests, Badges, and Companions

Finishing 100 Days at Sea quests pays out across several reward tracks, and knowing what each one does helps you prioritize. Pearls function as the main currency, chests deliver random loot, and badges permanently mark milestones on your Roblox profile. Companions — including limited-time ones — are among the rarer drops, and the community wiki tracks them as their own category.

Player experience suggests spending pearls steadily rather than hoarding them. Boat and weapon upgrades compound — every upgrade makes subsequent quests faster and safer, so early spending beats late-game savings.

Tips to Clear 100 Days at Sea Quests Faster

The difference between a day-40 wipe and a full 100-day completion usually comes down to habits, not luck. These are the practices experienced players repeat most often:

• Prep before every nightfall. Stock cooked food, secure your gear, and get back to your raft before dark. Night entities punish overextension.
• Check notifications constantly. Completed objectives don't always announce themselves loudly; the log is your quest tracker.
• Craft before you sail. A weapon and armor upgrade before an island trip prevents the most common mid-game deaths.
• Duplicate your ingredients. Professor Erik's task chains, per community reports, tend to demand similar materials repeatedly.
• Play co-op when possible. Splitting fishing, crafting, and exploration duties dramatically compresses task completion time.
• Re-check NPC dialogue after updates. Stranded Devs patches can quietly change requirements, and dialogue reflects the current version.

One more habit worth building: keep a small notepad of which NPCs you've fully exhausted. Because the game doesn't present a traditional quest journal, community players rely on their own tracking to avoid backtracking across the map for already-finished tasks.

Common Quest Mistakes to Avoid

Even committed players stall out for preventable reasons. Based on recurring complaints and questions in the community, these are the mistakes that cost the most progress:

Avoiding these five alone won't guarantee day 100, but it removes the failure points that end most runs prematurely.

FAQ

How do you start quests in 100 Days at Sea? Find and talk to the NPCs. The Fisherman and Professor Erik are the two documented quest starters on the community wiki, and their dialogue kicks off task chains. Your notification feed then tracks each objective as you progress.

How many quests are there in total? There's no official count, and it changes with updates. The wiki remains a work in progress with pages on NPCs, badges, corruption, and more being filled in by contributors, so treat any total you see online as a snapshot of a moving target.

Are 100 Days at Sea quests required to survive all 100 days? Technically no — pure survival is possible. In practice, 100 Days at Sea quests provide the pearls, weapons, armor, and companions that make the late game survivable, so players who skip them face a dramatically harder road to day 100.

Do quests reset if you die? Based on player experience, completed tasks and earned badges persist, but an unfinished run means rebuilding your raft, gear, and supplies from scratch. Protect your progress by playing cautiously around night cycles rather than rushing risky objectives.