Items, Structures & Companions — the Verified List
Everything below comes from cross-checked sources — recipes single-sourced from a tested guide are marked, and invented numbers from fabrication-prone sites are left out entirely.
Starting kit & consumables
Your signature tool — hooks floating resources (and birds) out of the sea. The whole early game runs through it.
Starting item for food from day one.
The serious heal. Four verified sources — Medic class, Mukumuku Market, Cargo Ship containers, Snorflord — detailed on the revive page.
The light heal; the Penguin companion prints one every 220 seconds.
Redirects the Angler Fish — the one tool that answers the night hunter directly.
Harpoon a bird, cook it — one of the biggest satiety restores in the game.
Structures (recipes per Pro Game Guides' tested guide)
| Structure | Recipe | Why it matters |
|---|---|---|
| Sawmill | 10 Wood + 2 Metal | Converts wood into 3 planks per cycle; gates Bonfire level 3. Experienced players run two. |
| Crab Trap | — | Passive food generation — set it and forget it. |
| Magnet | 30 Metal + 10 Wood | Unlocks at Bonfire level 4. Pulls in metal continuously — effectively infinite metal from then on. |
| Map Radar | — | Reveals the full map and marks islands. |
| Auto Turret | — | The solo player's raid insurance — automated defense for nights you can't cover alone. |
| Bonfire | — | The progression gate itself: leveling it unlocks structures, and keeping it lit keeps the Angler Fish away. |
Recipes marked "—" haven't been documented by a trusted source yet; the in-game build menu shows requirements directly. We don't reprint numbers from sites with a fabrication record.
Companions (chest rolls, rates per Deltia's & PGG)
| Companion | Roll rate | Effect |
|---|---|---|
| Salamander | 5% | Auto-loots for you |
| Penguin | 5% | Produces a Bandage every 220s |
| Crow | 30% | Produces food every 120s |
| Seagull | — | Produces food |
| Swordfish | 5% | +10% melee damage |
| Lava Snail | 30% | −7.5% hunger drain |
| Magma Golem | 5% | +10% melee damage |
Chests are bought with Pearls; Magma and Pirate chests are the priciest at 120 Pearls.
FAQ
What are the currencies in 100 Days At Sea?
Three: Pearls (from daily quests, badges, codes and chests — spent mainly on Classes and companion chests), Coins (traded at the Mukumuku Market), and Doubloons (from treasure chests, boosted by the Treasure Hunter class).
What does the Harpoon do?
It's your signature starting tool — you hook floating planks, furniture, crates and even birds out of the sea with it. Nearly everything your early raft is built from arrives via harpoon.
How do companions work?
You buy companion chests with Pearls and roll rarity-based odds — the best pulls (Salamander, Penguin, Swordfish, Magma Golem) sit at 5%. Magma and Pirate chests are the priciest at 120 Pearls.
What is Green Gum?
A craftable made by feeding Ghost Pirate corpses into the crafting machine — one of the game's stranger verified recipes (per Pro Game Guides' tested guide).