- 100 days at sea walkthrough: Focus on the core loop of harpooning, building, and exploring to survive the Bermuda Triangle.
- Active Codes: Use the code 20Pearls in the top-left menu for an immediate resource boost in June 2026.
- Top Class: The Survivor class is the best initial investment for 50 Pearls to reduce hunger and increase oxygen.
- Early Priority: Upgrade your Bonfire to Level 5 as quickly as possible to unlock essential mid-game structures.
- Boss Strategy: Do not attempt the Squid Boss until you have acquired a ranged weapon from a chest and stocked up on Chowder.
Official 100 Days At Sea Walkthrough: The First 10 Days
Surviving the initial launch into the open ocean is the most difficult hurdle for any new player. This 100 days at sea walkthrough begins with a simple premise: your raft is your life. In this Roblox experience developed by Stranded Devs, you are dropped into the mysterious Bermuda Triangle with nothing but a small platform and a harpoon. Your first objective is not exploration, but stabilization.
Video Highlights:
- Harpoon Mechanics: Learn how to hook floating debris to gather wood and plastic without leaving the raft.
- Inventory Management: How to use the starter sack to organize materials for your first bonfire.
- Night Survival: Managing the light source to avoid threats that emerge in the darkness.
During the first 48 hours, stay on your raft. Use the harpoon to snag every floating crate and barrel. These contain the raw materials needed to expand your base. Expansion isn't just for aesthetics; you need surface area to place the Cooking Pot and the Bonfire. By Day 5, your goal should be to have a 3x3 platform and a Level 1 Bonfire.
As of June 2026, players can redeem the code 20Pearls via the "Codes" tab at the top of the screen. This provides 20 Pearls, which is nearly half the cost of the Survivor class. Always check the official Stranded Devs community page for new event-based codes.
| Day Milestone | Primary Objective | Key Tool/Structure |
|---|---|---|
| Day 1-3 | Resource Gathering | Harpoon |
| Day 4-6 | Base Foundation | Bonfire Level 1 |
| Day 7-10 | Food Stability | Cooking Pot (Chowder) |
| Day 11-20 | Initial Exploration | Sail / Basic Boat Handling |
Raft Base Building and Bonfire Progression
Your raft is a mobile fortress. In any effective 100 days at sea walkthrough, the progression of your bonfire acts as the primary gatekeeper for new technology. As you upgrade the bonfire, you unlock defensive structures and utility items that allow you to venture further into the Volcano and Ice biomes.
Hook Resources Early
Use the harpoon to pull in floating objects. This saves health and keeps you safe from sea threats during the early game. Focus on wood and metal scraps.
Functional Expansion
Build your raft outward to create dedicated zones for storage, cooking, and combat. A cluttered raft leads to mistakes during night raids.
Bonfire Upgrades
Invest your gathered materials into the Bonfire. Reaching Level 5 is a major milestone that signals you are ready for the mid-game transition.
Food and Healing
Craft the Cooking Pot and start making Chowder. This is the most reliable way to manage hunger and health regeneration during long voyages.
Base building must prioritize defense. As you reach higher day counts, the frequency of raids increases. Positioning your bonfire in the center of the raft and surrounding it with defensive walls is a standard meta-strategy. Ensure you leave "combat lanes"—clear paths where you can move freely to engage enemies without tripping over storage chests.
| Bonfire Level | Unlockable Benefit | Requirement |
|---|---|---|
| Level 1 | Basic Crafting | Starter Materials |
| Level 5 | Mid-Tier Defenses | Wood, Plastic, Metal |
| Level 9 | Advanced Tech | Rare Island Resources |
| Master | Challenge Badge | Max Level before Day 3 |
Never build your storage crates on the very edge of the raft. If a sea monster or raid damages that specific tile, you risk losing all the resources stored in that chest. Always keep your valuables at least one tile inward from the perimeter.
Class Tier List: Choosing Your Role
Classes in 100 Days At Sea are permanent loadouts purchased with Pearls. Choosing the right class can drastically change the difficulty of your run. For a solo 100 days at sea walkthrough, we highly recommend the Survivor or Medic for their sustain capabilities.
Survivor (S-Tier)
- Cost: 50 Pearls
- Buff: 10% faster regen, extra oxygen.
- Best For: Beginner solo runs and general safety.
Sharpshooter (S-Tier)
- Cost: 400 Pearls
- Buff: 50% more gun damage.
- Best For: Boss fights and late-game clearing.
Raider (S-Tier)
- Cost: 750 Pearls
- Buff: Ammo drops from enemies.
- Best For: Sustained combat and island raids.
The Raider and Fire Mage are considered the "end-game" classes due to their high Pearl costs and massive damage output. However, players should not ignore the utility of the Sailor or Merchant for specific economy-focused runs. If you are playing in a duo, having one Medic and one Sharpshooter creates a balanced team capable of taking down the Squid Boss with ease.
| Class Name | Cost | Starter Tool | Main Buff |
|---|---|---|---|
| Survivor | 50 Pearls | Chowder | Regen & Oxygen |
| Medic | 60 Pearls | Medkit | Fast Health Regen |
| Swordsman | 250 Pearls | Machete | +50% Melee Damage |
| Pirate | 500 Pearls | Blunderbuss | +50% Gun Damage |
| Fire Mage | 750 Pearls | Magma Staff | +50% Magic Damage |
Pearls are the primary currency for unlocking classes. While you can swap classes between runs, the Pearls spent are not refunded. It is better to save up for a high-tier class like the Raider rather than buying every low-tier class available.
Companion System and Chest Gacha
Companions provide passive buffs that follow you across the ocean. These are obtained through "Chests" that cost Pearls. Each chest has a different drop table, with the Magma and Pirate chests containing the most powerful combat companions.
Best Companions for Survival:
- Salamander: Automatically picks up nearby loot, making resource gathering significantly more efficient.
- Octopus: Brings random materials to the player every 120 seconds.
- Swordfish: Provides a flat 10% boost to melee damage, essential for island clearing.
| Chest Type | Pearl Cost | Top Tier Drop | Drop Chance |
|---|---|---|---|
| Fisherman's | 40 | Shark (Melee) | 13% |
| Warrior | 80 | Octopus (Loot) | 16% |
| Magma | 120 | Salamander (Auto-Pickup) | 5% |
| Pirate | 120 | Pirate Gunner (Gun DMG) | 5% |
Companion drops are randomized. Do not spend all your Pearls on chests until you have unlocked at least one S-Tier class. A good class provides a more consistent benefit than a low-rarity companion.
Island Exploration and Boss Progression
Once your raft is stable and you have a class equipped, the next stage of the 100 days at sea walkthrough is island hopping. Islands are the only place to find high-tier weapons and the bosses required for rare badges like Arms of Victory and King Of The Snow.
Exploration Checklist:
Island Exploration Milestones:
- Visit the starter mysterious islands for basic loot
- Find a gun from a chest (Firepower Badge)
- Locate and defeat the Squid Boss for the Arms of Victory badge
- Enter the Ice Biome and rescue all 10 penguins
- Venture into the Volcano region to fight the Lord of Lava
The transition from the open sea to the Ice Biome requires significant preparation. The cold mechanics will drain your health if you aren't wearing the correct gear or staying near a heat source. Similarly, the Volcano region requires high fire resistance or the Fire Mage class to navigate safely.
| Boss Name | Region | Reward/Badge | Difficulty |
|---|---|---|---|
| Squid Boss | Open Sea | Arms of Victory | Moderate |
| Ice Boss | Ice Biome | King Of The Snow | Hard |
| Lord of Lava | Volcano | Magma Staff Route | Extreme |
| Ghost Galleon | Night Raid | Third Bell Rung | Moderate |
Before fighting any boss, ensure your raft is anchored. If your raft drifts away during a fight on an island or rig, you may be stranded with no way to return to your main base, effectively ending your 100-day run.
100 Days At Sea Walkthrough: FAQ
Q: How do I get more Pearls quickly in 100 Days At Sea?
The fastest way to get Pearls is by completing daily milestones and redeeming active codes like '20Pearls'. Additionally, high-level raids and boss chests provide a steady income of Pearls for late-game unlocks.
Q: What is the best class for a solo 100 days at sea walkthrough?
For solo players, the Survivor class is the most efficient choice due to its low cost (50 Pearls) and survival-focused buffs like increased oxygen and faster health regeneration.
Q: Can I survive past 100 days?
Yes, 100 days is the primary milestone for the 'Rescued!' badge, but you can continue your run indefinitely to upgrade your raft further and defeat all biome bosses.
Q: Where can I find the Squid Boss?
The Squid Boss is a random encounter in the open sea or can be found at specific high-threat island coordinates. Ensure you have the 'Firepower' badge (a gun) before engaging.
This guide is updated for the June 2026 version of 100 Days At Sea on Roblox. Game mechanics and code availability are subject to change by Stranded Devs. Stay tuned to the official community channels for the latest patch notes.