All 40 Structures in 100 Days At Sea

Structures are the placeable crafts that turn a bare raft into a working base: floors and walls, kitchens, resource stations, ammo lines, day-multiplier shelters, and raid defense. Almost every recipe unlocks through the bonfire craft menu, so your build order is really a bonfire plan.

Wooden Gate

WGWooden Gate

Pairs with wooden fences so you can close off parts of the raft without boxing yourself in.

Bonfire

1

Limit

Unlimited

Wood

4

Function

Wood gate opening for fenced raft sections.

Wooden Wall

Standard early wall for covering open sides of the raft before metal shell pieces unlock.

Bonfire

2

Limit

Unlimited

Wood

5

Function

Solid wood barrier for raft protection.

Wooden Window

Same tier cost as a wooden wall when you want a barrier that still lets you see raids or the sea.

Bonfire

2

Limit

Unlimited

Wood

5

Function

Wood wall piece with an opening for sight lines.

Wooden Stairs

Main way to stack floors early so you can build upward instead of only outward.

Bonfire

2

Limit

Unlimited

Wood

5

Function

Straight stairs between raft levels.

Corner Stairs

Use when a straight stair run does not fit and you still need access to a second floor.

Bonfire

2

Limit

Unlimited

Wood

5

Function

Corner-turn stairs between raft levels.

Wooden Door

Slightly more wood than a plain wall, but it keeps rooms walkable without leaving permanent gaps in the shell.

Bonfire

2

Limit

Unlimited

Wood

6

Function

Door opening in wood walls for controlled access.

Ladder

Cheap mid-run vertical access when stairs take too much footprint on a crowded raft.

Bonfire

4

Limit

Unlimited

Wood

3

Metal

-

Function

Vertical climb between multiple floors.

Metal Fence

Metal upgrade path for early fences once Wood walls are not enough and you have spare Metal.

Bonfire

4

Limit

Unlimited

Wood

-

Metal

5

Function

Stronger metal perimeter for containment.

Metal Gate

Matches metal fence cost so you can keep an entry point after upgrading the perimeter.

Bonfire

4

Limit

Unlimited

Wood

-

Metal

5

Function

Metal gate opening for stronger fenced sections.

Metal Door

Late shell door that keeps metal rooms sealed without leaving permanent openings.

Bonfire

5

Limit

Unlimited

Metal

5

Function

Stronger door for metal shell rooms.

Metal Window

Costs more Metal than a solid metal wall tile when you want sight lines through a reinforced shell.

Bonfire

5

Limit

Unlimited

Metal

9

Function

Metal wall piece with a viewing opening.

Metal Wall

Primary reinforced wall once raids hit harder and wood barriers stop feeling safe.

Bonfire

5

Limit

Unlimited

Metal

10

Function

Solid metal barrier for late-run raft protection.

Cooking Pot

CPCooking Pot

First real kitchen station. Guides pair it with a Crab Trap so you have ingredients instead of cooking air.

Bonfire

1

Limit

3

Wood

5

Metal

3

Function

Cooks food batches into chowder (three ingredients per craft).

Crab Trap

Top early food station. Place one or two after wood income stabilizes so hunger stops owning every trip.

Bonfire

3

Limit

3

Wood

12

Metal

8

Function

Passive seafood and food drops on a short cooldown.

Pizza Oven

Best long-term kitchen once unlocked. Expensive wood cost, but pizza removes most of the mid-run hunger grind.

Bonfire

3

Limit

Unlimited

Wood

30

Metal

10

Function

Cooks food into pizza slices that fill hunger much better than basic meals.

Tree Plot

Early wood helper before you unlock the Sawmill. Useful padding, not a full replacement for floating loot.

Bonfire

2

Limit

Unlimited

Wood

7

Metal

-

Function

Small on-raft wood farm plot.

Storage Bin

Dedicated place to dump materials on the raft so floors and sacks stay cleaner during long runs.

Bonfire

3

Limit

Unlimited

Wood

12

Metal

-

Function

On-raft storage container for supplies.

Sawmill

Core wood engine once Bonfire 3 is up. Low Metal cost and a high place limit make multiple mills normal in co-op.

Bonfire

3

Limit

5

Wood

10

Metal

2

Function

Repeatable wood production station (about three planks per use).

Pump Jack

Early fuel station for boat and factory loops. Spend Metal only after Sawmill and food are stable.

Bonfire

3

Limit

3

Wood

10

Metal

15

Glue

-

Function

Converts wood into a large gas canister for fuel crafts.

Magnet

Hard Metal cap is only two Magnets. Craft both as soon as Bonfire 4 allows so later factories stop stalling.

Bonfire

4

Limit

2

Wood

10

Metal

30

Glue

-

Function

Passive metal collection from the sea when deployed.

Oil Drill

Upgraded fuel path after Pump Jack. Needs Glue plus heavy Wood, so keep mills and Magnets running first.

Bonfire

5

Limit

3

Wood

35

Metal

20

Glue

5

Function

Converts wood into a gas drum for higher fuel crafts.

Lightning Rod

Place near factories before storms so production bursts when the rod charges instead of sitting idle.

Bonfire

6

Limit

Unlimited

Wood

15

Metal

30

Glue

8

Function

Speeds nearby machines when charged by lightning.

Ammo Factory

Main ammo station for raid nights. Guides note it spends Metal per run, so feed it only after Magnets are online.

Bonfire

5

Limit

Unlimited

Wood

30

Metal

20

Glue

4

Function

Turns Metal into random ammo boxes for guns.

Grenade Factory

Explosive logistics station for late raids. Needs a fuel pipeline (Pump Jack or Oil Drill) before it is worth the floor space.

Bonfire

6

Limit

Unlimited

Wood

30

Metal

20

Glue

4

Function

Turns a gas drum into grenades.

Small Shelter

SSSmall Shelter

Cheapest day-multiplier building. Craft the single allowed copy early so day progress accelerates without a big Metal bill.

Bonfire

1

Limit

1

Wood

5

Metal

1

Function

Raises the day-count multiplier by 1.

Sundial

One-copy utility for tracking the day cycle so night raids and bonfire fuel decisions are less guesswork.

Bonfire

2

Limit

1

Wood

10

Metal

-

Function

Shows day and night timing on the raft.

Radio

Cheap one-copy station that turns survivor rescues into planned trips instead of blind sailing.

Bonfire

2

Limit

1

Wood

4

Metal

4

Function

Marks survivor locations on the map.

Container Shelter

CSContainer Shelter

Second named day-multiplier shelter. Plan it after the Cargo Ship route instead of expecting it on the first craft menu.

Bonfire

2

Limit

1

Wood

12

Metal

6

Glue

1

Function

Raises the day-count multiplier by 1.

Map Radar

Non-negotiable exploration station once Bonfire 3 is available. One copy opens the map so you stop sailing blind.

Bonfire

3

Limit

1

Wood

9

Metal

4

Glue

-

Function

Unlocks full map access and island marking.

Potion Table

Station for the potions system, not a potion list. Build after core food and wood stations if you want buffs for raids.

Bonfire

3

Limit

Unlimited

Wood

10

Metal

5

Glue

1

Function

Brewing station for potions using the recipe book at the table.

Galleon Bell

One-copy summon tool for the Ghost Galleon route. Save Glue for the activation cost after you can already defend the raft.

Bonfire

5

Limit

1

Wood

20

Metal

20

Glue

10

Function

Spends Glue to temporarily spawn the Ghost Galleon.

Corrupted Portal

Top-tier craft with a heavy Wood and Metal bill. Treat as late endgame until a clearer function note is confirmed in-game.

Bonfire

7

Limit

Unlimited

Wood

50

Metal

50

Glue

-

Function

-

Watchtower

Cheap height for spotting threats and shooting from above without spending Metal on turrets yet.

Bonfire

3

Limit

Unlimited

Wood

12

Metal

-

Glue

-

Function

Elevated vantage point for scouting and defense angles.

Spike Trap

Balanced three-resource trap for choke points when raids start walking onto your floors.

Bonfire

5

Limit

Unlimited

Wood

5

Metal

5

Glue

5

Function

Defensive trap against hostile entities on the raft.

Cannon

Heavy Metal defense piece for covering approaches before Auto Turrets cover the whole deck.

Bonfire

5

Limit

Unlimited

Wood

15

Metal

30

Glue

4

Function

Player-aimed defensive gun against hostiles.

Kraken Arm

Late defensive craft with a high Glue bill. Place after production and ammo lines are already funded.

Bonfire

6

Limit

Unlimited

Wood

30

Metal

30

Glue

12

Function

Defensive structure against hostile entities.

Autoturret

Best passive raid defense once available. Craft is expensive; buying early from the merchant can be faster for solo nights.

Bonfire

7

Limit

Unlimited

Wood

15

Metal

35

Glue

8

Function

Fires at enemies with bullets automatically.

How bonfire crafting works

Your bonfire level is the gate on the craft menu. Raise it and new shell pieces, stations, and defenses appear. Recipes spend Wood, Metal, and Glue (guides and UI also call Glue Goo or Goop). Scrap Ghost Pirate corpses into the craft machine when you need Glue.

Many stations also have a craft limit. Once you hit the max (for example Magnet, Crab Trap, Sawmill, or Small Shelter), you cannot place another copy until one is gone. Destroyed limited crafts can usually be rebuilt, so a wipe is painful, not permanent.

Not every structure is “menu only.” Some need a blueprint, a merchant recipe, or a short unlock trip first. Cards that list Unlock or Also from are the ones with that extra step.

What to craft first

Early pressure is floor space, hunger, and wood. Expand with Wooden Floor, light the deck with Torch, and get a Cooking Pot down so food batches become chowder instead of raw panic. When Bonfire 3 opens, Crab Trap is the passive food station guides push hardest: it feeds the pot so you stop cooking air.

Same tier, Sawmill is the wood engine (cheap Metal, solid place limit). Map Radar is the one-copy exploration unlock that stops blind sailing. Tree Plot is early wood padding before mills; it does not replace a real Sawmill loop.

A simple early stack looks like this:

1. Floors and a bit of wood shell so stations have space.
2. Cooking Pot, then Crab Trap when Bonfire 3 is up.
3. Sawmill(s) as soon as wood income is the bottleneck.
4. Map Radar (and Radio if you care about survivor marks).
5. Both Magnets the moment Bonfire 4 allows them.

Resource loops that unlock everything else

Metal is the real mid-run choke. Magnet is hard-capped at two, costs a pile of Metal up front, and is the station that keeps later factories from stalling. Craft both when you can.

Fuel follows a similar path. Pump Jack turns wood into a large gas canister for boat and factory work. Oil Drill is the heavier upgrade (Wood, Metal, and Glue) once mills and Magnets are already online. Lightning Rod is not a fuel station: it speeds nearby machines when storms charge it, and guides point the blueprint at the Cargo Ship upper loot route.

Storage Bin is pure quality of life. It does not print resources, but it keeps materials off the floor during long runs.

Food after the first kitchen

Cooking Pot is the starter kitchen. Crab Trap keeps it stocked. Pizza Oven is the long-term kitchen once you can afford the wood bill, but it is not a free Bonfire 3 craft: guides report buying the recipe from the Traveling Merchant, then unlocking a glowing underwater object near the raft before you can place it. Until that chain is done, keep the pot and traps running.

Combat logistics and raid defense

Ammo Factory (Bonfire 5) turns Metal into random ammo boxes. Feed it only after Magnets are producing, or you will starve the rest of the base. Grenade Factory (Bonfire 6) wants a gas drum pipeline from Pump Jack or Oil Drill first; otherwise it is expensive floor art.

For the deck itself, climb the defense ladder when raids start walking on your floors:

• Watchtower for cheap height and angles before Metal defense is online.
• Spike Trap for choke points once Glue is available.
• Cannon for player-aimed coverage on approaches.
• Kraken Arm as a late, Glue-heavy defensive craft.
• Autoturret as the passive endgame answer: craft at Bonfire 7, or buy earlier from the Traveling Merchant (about 150 Doubloons once that sale is available).

Shell upgrades track the same pressure. Wood walls, doors, and windows cover early nights. Metal fence, gate, door, wall, and window come later when wood barriers feel thin. Ladder and stairs matter once you stack floors and need vertical access without eating the whole deck.

Utility that moves the day counter

Small Shelter is the cheapest day-multiplier building (one copy, early Metal cost). Container Shelter is the next named day-multiplier on the list, but guides tie its blueprint to clearing the Cargo Ship, so do not expect it on day one. Other day-multiplier crafts exist in incomplete tables without stable public names; only named shelters are listed here.

Other one-copy utilities are easy to undervalue:

• Sundial tracks day and night so raid and fuel timing is less guesswork.
• Radio marks survivor locations.
• Map Radar opens full map access and island marks.
• Potion Table is the brewing station for potions (place it on empty wooden floor at Bonfire 3). It is the table, not a recipe list.
• Galleon Bell spends Glue to temporarily spawn the Ghost Galleon. Build it when you can already defend the raft, not as a panic button with empty pockets.
• Corrupted Portal sits on the Bonfire 7 craft list with a heavy Wood and Metal bill. Treat it as late endgame until its exact in-run job is confirmed.

Common mistakes

• Raising the bonfire without a plan for the new menu. New tiers spend Metal and Glue you may still need for Magnets, factories, or turrets.
• Skipping Magnets. Two Magnets early beats one more decorative wall when factories go hungry.
• Building Ammo Factory before metal income. Empty Metal piles do not load guns.
• Ignoring craft limits. Sawmill, Magnet, Crab Trap, and shelters have caps; plan floor space and co-op sharing around those maxes.
• Assuming every station is menu-only. Pizza Oven, Container Shelter, Lightning Rod, and Autoturret can need merchant, cargo, dive, or blueprint steps first.
• Spending Glue on vanity defense before production. Glue is scarce; mills, Magnets, and food should win before Kraken Arm cosmetics.

Craft what fixes the bottleneck you feel tonight (hunger, wood, metal, map blindness, or raid pressure), then spend the next bonfire unlock on the next bottleneck. The cards below are sorted by job so you can compare costs and limits without reading the whole craft menu twice.

FAQ