100 Days At Sea drops you in the middle of the ocean with a harpoon, a small raft, and one goal: stay alive long enough to reach Day 100 and unravel the mystery of the Bermuda Triangle. Built by Stranded Devs and openly inspired by 99 Nights in The Forest, it is an open-world survival game where you gather materials, expand a floating base, sail between islands, and fight through nights of invading enemies.
Quick answer: 100 Days At Sea is a Roblox raft-survival game from Stranded Devs with 23 classes, 8 islands, and 6 bosses ending in the Bermuda Entity. Three codes are currently active — SEAADVENTURE, STRANDEDDEVS, and 100DAYS.
How the core loop works
Gameplay splits into a day and night cycle. During the day you explore, hook resources with your harpoon, and build out your raft with structures and defenses. At night, invading forces attack, and your job is to survive until dawn. That rhythm repeats until you either reach Day 100 or die trying.
Progression is gated by bosses. You sail to new biomes, collect the materials each one offers, craft stronger gear at your raft bench, and then take down the boss that blocks the next stage. Co-op makes the late islands far easier, but a solo run to Day 100 is achievable with a sustain-focused class. Coins and Pearls are the main currencies, with Doubloons and Companion Chests layered in for class unlocks and pets.
Active 100 Days At Sea codes
Three codes are currently working. Each one drops its reward straight into your Coins, Pearls, or Companion Chest count once accepted, so a successful redemption shows up immediately in your totals. Codes rotate often with updates, so claim them early.
| Code | Reward | Status |
|---|---|---|
| SEAADVENTURE | 50 Coins | Active |
| STRANDEDDEVS | Free Companion Chest | Active |
| 100DAYS | 25 Pearls | Active |
Open the Companion Chest from STRANDEDDEVS at a safe dock with inventory space so the random pet roll lands correctly. The earlier BERMUDA code, which gave an exclusive skin during the Bermuda update, has already expired, so treat current codes as time-limited.
Upcoming events
A new large Ice Region is already live in the game. A weekend-only Bonus Pearls and Codes event is scheduled to begin Friday, June 26, and an Alien Invasion content event is set to follow on Friday, July 3. Both are worth flagging if you want extra Pearls or fresh codes around those dates.
All 23 classes, costs, and buffs
Classes are loadouts you unlock with Pearls. Each gives a passive buff and, in most cases, a starter tool at the beginning of a run. You earn Pearls by opening Chests on islands and completing Daily Quests. Sailor is the cheapest entry point, while the high-end combat and economy classes sit at the top of the price range.
| Class | Cost (Pearls) | Starter tool | Main buff |
|---|---|---|---|
| Sailor | 40 | None | Faster top speed and better boat handling |
| Survivor | 50 | Chowder | 10% faster regen, extra oxygen, less hunger |
| Medic | 60 | Medkit | Faster health regeneration |
| Crewmate | 60 | Flintlock | 10% more gun damage |
| Camper | 70 | Good Sack | +10% health |
| Adventurer | 250 | Giant Sack | 15% more health, less hunger |
| Olympian | 250 | None | 25% faster sprint, 20% extra health |
| Battle Buku | 250 | Poku Poku | 25% more melee damage, MukuMuku discount |
| Swordsman | 250 | Machete | 50% more melee damage, 20% extra health |
| Cowboy | 300 | Revolver | 15% more health, 33% more gun damage |
| Soldier | 300 | Assault Rifle | 20% faster sprinting |
| Merchant | 350 | 100 Doubloons | 25% more Doubloons |
| Night | 380 | Claymore | Knight Armor, 30% damage reduction, 15% more sprint |
| Sharpshooter | 400 | Flintlock | Faster reload, 50% more gun damage |
| Millionaire | 400 | Luxury Yacht | Spawn with a Jumbo Luxury Yacht and 100x Doubloons |
| Treasure Hunter | 500 | 100 Doubloons | Five more stack slots, 25% more Doubloons |
| Pirate | 500 | Blunderbuss | Better boat handling, 50% more gun damage |
| Hero | 600 | Holy Sword | 25% more health, 25% less hunger |
| Zookeeper | 600 | Machete | Supercharges Companions |
| Battle Bunny | 700 | Egg Bomb | Egg Grenades from enemies and chests, double jump, 20% faster sprint |
| Raider | 750 | Dual Pistols | More ammo every five kills, killed enemies drop ammo, 15% faster sprint |
| Ancient Squid | 750 | Squid Laser | 15% more sprint speed |
| Fire Mage | 750 | Magma Staff | 50% more Magic Damage |
For a first purchase, Survivor is the most forgiving pick because faster regeneration, extra oxygen, and lower hunger smooth out early survival. If you plan to group up, hold a few Pearls for a support or combat role rather than spending everything on cosmetics.
All eight islands and their bosses
The world is split into eight major biomes that scale from safe to very hard. Six of them hold a boss, and clearing those bosses is how you push toward the Bermuda Island endgame. Save Bermuda for last, since it carries the final storyline and the toughest fight.
| Island | Difficulty | Boss | Key resources and notes |
|---|---|---|---|
| Starter Island | Safe | None | Wood, Stone, Coconuts — gather basics for your first raft |
| Jungle Island | Easy | None | Tropical Fruit, Vines, Wood — early food and crafting materials |
| Desert Island | Medium | Sand Worm | Scrap Metal, Cactus Water, Sand — bring a ranged weapon |
| Shipwreck Island | Medium | Ghost Captain | Iron, Gunpowder, Ship Parts — best mid-game Iron source |
| Volcano Island | Hard | Lava Guardian | Obsidian, Magma Ore, Fire Crystals — need fire resistance and Iron Armor |
| Ice Island | Hard | Frost Giant | Ice Crystals, Frozen Fish, Frost Wood — cold drains health, bring warm food |
| Kraken Zone | Very Hard | Kraken | Kraken Ink, Deep Sea Pearls — full crew and top-tier weapons required |
| Bermuda Island | Very Hard | Bermuda Entity | Ancient Relics, Mystery Crates — final storyline, save for last |
Note: Desert Island’s Sand Worm arena punishes melee-only loadouts, so carry a ranged option before you sail there. Likewise, do not attempt Volcano Island without Iron Armor, since the Lava Guardian’s fire damage wipes undergeared groups.
Crafting recipes and build order
Everything starts at your raft bench. Get the basics down first so you have shelter, warmth, and a steady food source before sailing anywhere. The early priority is a Wooden Raft, then a Bonfire for cooking and warmth, then a Fishing Rod so you never run out of food at sea.
| Item | Materials | Use |
|---|---|---|
| Wooden Raft | 10 Wood + 5 Rope | Your mobile base — build this first |
| Raft Expansion | 15 Wood + 8 Rope + 5 Nails | More room for structures |
| Bonfire | 5 Wood + 3 Stone + 1 Flint | Cook food and stay warm at night |
| Container Shelter | 20 Scrap Metal + 10 Wood | Protects from rain and cold |
| Grinder | 10 Scrap Metal + 5 Stone | Break items down into materials |
| Fishing Rod | 5 Wood + 3 Rope + 1 Hook | Reliable food without island trips |
| Medkit | 5 Cloth + 3 Herbs + 1 Alcohol | Heals 50% HP — always carry one |
| Iron Sword | 15 Iron + 5 Wood + 3 Leather | Best mid-game melee weapon |
| Flintlock Pistol | 10 Iron + 5 Gunpowder + 3 Wood | First ranged weapon for bosses |
| Iron Armor | 25 Iron + 10 Leather + 5 Cloth | Craft before Volcano Island |
Mid-game, set up a Grinder for recycling, craft a Flintlock Pistol for the Desert Island boss, and keep Medkits stocked. Use Shipwreck Island Iron to make an Iron Sword and Iron Armor before Volcano. Heading into Kraken Zone and Ice Island, upgrade to stronger weapons and bring repair kits and warm food.
Companions and other systems
Companions are familiars that hand out bonuses similar to classes, and the Zookeeper class boosts them further. You will also meet NPCs across your run; most are hostile, but not all of them. Voice chat and camera support are not part of the game, and standard servers hold up to 27 players, which is why co-op coordination matters most for the Kraken and Bermuda Entity fights.
If you are just starting, the fastest path forward is to redeem the three active codes, pick up wood and stone on Starter Island, craft your Wooden Raft, Bonfire, and Fishing Rod, then sail to Jungle Island for early food. From there, the boss order on the island table is your roadmap all the way to Day 100.
