Updated June 2026
Chest Tiers in 100 Days At Sea
Island chests in 100 Days At Sea scale by biome difficulty and chest color tier — each island drops a distinct loot table tied to progression days. Treasure Hunter class (+25% chest loot quality) and daily quest Pearl income from daily quests multiply chest value across all tiers. Stranded Devs mapped eight chest colors from Basic on starter island through Mystery on bermuda island. This reference lists every tier with typical loot, recommended day ranges, Pearl farming strategy, and links to island guides on islands. Cross-reference currency for Pearl and Doubloon spend priorities after chest farming sessions.
Chest Tier Overview by Island
Starter Island — Basic chests: Coins, Wood bundles, starter hooks. Recommended Days 1–5. First Pearl source alongside codes 100DAYS redemption.
Jungle Island — Green chests: Vines, Herbs, Tropical Fruit extras. Recommended Days 3–10. Herbs feed Medkit crafting on crafting.
Desert Island — Blue chests: Scrap Metal, Gunpowder parts, Cactus Water. Recommended Days 10–20. Grinder and Crab Trap material gate.
Shipwreck Island — Purple chests: Iron, Ship Parts, rare weapon scraps. Recommended Days 15–30. Critical Iron Pearl income before Volcano.
Volcano Island — Red chests: Obsidian, Magma Ore, Fire Crystals. Recommended Days 35–50. Highest Pearl drops until Legendary tier.
Ice Island — Frost chests: Ice Crystals, Frost Wood, warm meal materials. Recommended Days 45–60. Pearls fund Ancient Squid before Kraken.
Kraken Zone — Legendary chests: Deep Sea Pearls, Kraken Ink, S-tier weapon scraps. Recommended Days 65–85. Co-op farming optimal.
Bermuda Island — Mystery chests: Ancient Relics, Mystery Crates, Pearls. Recommended Days 80–100. Maximum variance and jackpot Pearl RNG.
Basic and Green Tiers — Early Game
Basic tier on Starter Island teaches chest interaction — open every chest before sailing to jungle island. Coins supplement SEAADVENTURE 50 Coins from codes for Fishing Rod hooks and Bonfire Flint.
Wood bundles accelerate Wooden Raft and Raft Expansion without full tree farming loops. Starter hooks reduce vendor dependence on Day 1.
Green tier on Jungle Island adds Vines for rope chains and Herbs for Medkit batches. Tropical Fruit extras stack with Bonfire cooking on beginner survival.
Treasure Hunter Compass runs on seeds document Green cluster coords — Adventurer class scouts faster.
Pearl drops are modest in Basic and Green tiers — daily quests on daily quests outpace chest Pearls until Blue tier.
Blue and Purple Tiers — Mid Game
Blue tier on Desert Island aligns with Sand Worm prep on sand worm — Scrap Metal and Gunpowder parts reduce Grinder craft backtracking.
Cactus Water extras from Blue chests supplement desert heat management during Sand Worm attempts.
Purple tier on Shipwreck Island is the Iron economy backbone — Iron drops overlap natural node farming on shipwreck island.
Rare weapon scraps from Purple chests occasionally skip partial craft gates on weapons — RNG dependent, not reliable strategy.
Pearl income spikes Purple tier onward — Warrior Chest (80 Pearls) and Medic (30 Pearls) become reachable with daily quest stacking.
Red and Frost Tiers — Late Mid Game
Red tier on Volcano Island during Lava Guardian week on lava guardian — Obsidian and Magma Ore feed advanced crafts.
Fire Crystals gate late recipes — stock during Red chest sweeps before Ice transition.
Frost tier on Ice Island during Frost Giant prep on frost giant — warm meal materials reduce Frozen Fish harpoon grind on harpoon fishing.
Ice Crystals and Frost Wood feed late gear before Kraken Zone Legendary farming.
Magma Chest (120 Pearls) companion purchase timing aligns with Red tier Pearl surplus from Volcano farming.
Legendary and Mystery Tiers — Endgame
Legendary tier in Kraken Zone open ocean on kraken zone — Deep Sea Pearls fund Hero, Ancient Squid, and Fire Mage unlocks on all classes.
Kraken Ink from Legendary drops feeds weapon mod endgame on weapons.
Co-op four-player Legendary sweeps maximize Pearls per hour — Treasure Hunter assigned to compass navigation.
Mystery tier on Bermuda Island on bermuda island — Mystery Crates roll Pearls, Doubloons on currency, and Ancient Relics.
Treasure Hunter (+25% chest loot quality) is the premium chest farming class — 45 Pearl unlock justified by Day 40 if chest route documented on seeds.
Chest Farming Strategy and Class Synergies
Route planning: hit chest clusters during natural island progression — never backtrack Starter Basic chests after Day 10 unless seed routing demands Wood.
Treasure Hunter plus Adventurer: Compass plus exploration speed — optimal chest duo for co-op per co op strategy.
Merchant (+20% sell price) monetizes excess chest mats — Coins fund vendor parts when chest RNG duplicates items.
Raider (+20% damage + raid loot) on combat chest routes with mob guards — Desert through Shipwreck especially.
Pair chest sessions with daily quest board objectives on daily quests — visit island quests overlap natural chest sweeps.
Full island context: islands. Currency spend: currency. Crafting uses: crafting.
Frequently Asked Questions
What chest tier is on Starter Island?
Basic chests with Coins, Wood bundles, and starter hooks. Recommended Days 1–5.
Which chest tier gives the most Pearls?
Red, Legendary, and Mystery tiers give the highest Pearl drops. Mystery Crates on Bermuda have the most variance.
Does Treasure Hunter affect all chest tiers?
Yes. Treasure Hunter grants +25% chest loot quality on every tier from Basic through Mystery.
When should I farm Purple chests?
Days 15–30 on Shipwreck Island during Iron farming and Ghost Captain prep.
What is in Legendary chests?
Deep Sea Pearls, Kraken Ink, and S-tier weapon scraps in Kraken Zone. Recommended Days 65–85.