Frequently Asked Questions

22 common questions about the 100-day arc, bosses, economy, badges, and tools.

How long is a day in 100 Days At Sea?

A full day-night cycle lasts approximately 4.5 real-world minutes - 3 minutes of daytime gathering and 1.5 minutes of nighttime defence. The full 100-day lifecycle is approximately 7.5 hours of active play, though Bonfire fuel efficiency, Radio Tower intelligence, and +1 Day Multiplier buildables can cut that significantly.

What happens if my Bonfire runs out of fuel?

If the Bonfire reaches zero fuel, health regeneration halts, the map becomes inaccessible, and high-threat entities spawn with 100% probability - frequently inside your own stronghold. Treat the Bonfire fuel economy as the defining survival mechanic of the game.

Can I play solo or do I need a crew?

Solo play is fully viable but expensive in operational overhead. Companions (rescueable NPCs) provide passive buffs and automate low-tier tasks. For raid-tier encounters like the Lord of Lava or Ghost Pirate Stronghold, a crew of 2-3 is strongly recommended.

What is the maximum server size?

27 players per server instance. This is a hard cap set by the developers - it cannot be raised via private servers or matchmaking manipulation.

How do I summon Lord of Lava?

Locate three Fire Golems patrolling the Volcano Region's lower slopes, defeat each one, then physically transport their bodies and throw them into the active caldera. The thermal interaction triggers the eruption phase. After the eruption, descend into the caldera to engage the boss.

What is the drop rate for the Magma Staff?

The Magma Staff is a guaranteed 100% drop from the Magma Chest after defeating Lord of Lava. It is the only source of the weapon in the game. Bring Lava Keys to repair or re-roll the staff's durability.

How do I trigger the Kraken?

The Kraken is procedurally triggered. Sustained presence in deep-ocean coordinates away from island shallows, or hitting a depth threshold for an extended duration, will start the encounter. Leaving the depth zone cancels the encounter - use this as an emergency disengage.

Can I enter the water during the Kraken encounter?

No. The Kraken uses a dual-threat aggro system - entering the water column instantly shifts aggro from the raft grid to your player entity, resulting in near-instant hydrodynamic execution. Treat the encounter as a structural-defence puzzle solved from the raft.

How do I capture the Cargo Ship?

Match velocity using the Engine + Steering Wheel combination. Scale the vertical hull geometry. Clear the upper-deck NPCs before looting the bridge chest - leaving one alive will flag you as hostile to reinforcements. Open the bridge chest in-place to preserve bonus-tier drops.

How do I clear the Ghost Pirate Stronghold?

Dock at Cursed Island, establish a beachhead fortification, then engage the swarm with the Magma Staff from the Volcano. The burn DoT thins the swarm faster than any other weapon. Save Healing Potions for the captain phase.

How do I trade Pearls?

Use the in-game gifting interface to send Pearl bundles directly to other players. There is no escrow - trade through trusted crewmates. External marketplaces like Itemku and Gameflip index third-party valuations for the currency tiers.

What is the most valuable trade item in the game?

The +1 Day Multiplier Buildable, sourced from the Special Chest at the apex of a cleared Rival Rig. At 10,000+ Pearls per blueprint on the active player market, it dominates the meta by orders of magnitude.

How much is a Vault O'Pearls worth?

~$15.49 USD on third-party marketplaces (as of June 2026). In-server rates are typically 30-60% below the listed market price because the developers take a cut on direct Robux transactions.

How do I unlock the Bonfire Level 4 composite?

Bonfire Level 4 requires Iron Ingots and Bricks. Iron Ingots are smelted from Iron Ore + Coal. Bricks are smelted from Clay + Sand. Both material chains require active island excavation on Iron Vein Islands.

How do I unlock the Bonfire Level 5 composite?

Bonfire Level 5 requires refined Titanium and Advanced Fuel. Titanium is found in late-game island excavation (Industrial Phase). Advanced Fuel drops in bulk from the Cargo Ship and the Kraken encounter, and is processed via the Biofuel Processor.

What does the Biofuel Processor do?

Converts food items and wood composites into high-yield Biofuel. The processor is the standard answer to catastrophic fuel deficits during extended Rain or Blizzard weather events. Biofuel outputs are also a heavily traded player-to-player commodity.

How do I find a Radio Tower?

Radio Tower islands spawn procedurally across the mid-ocean. Each tower has a single interactable central antenna. Scout Mira (the recon companion) extends the UI Compass range by 40% and flags Radio Tower locations on the map.

How do I rescue companions?

While exploring procedural islands or clearing Rival Rigs, you'll encounter incapacitated NPCs. The interaction prompt is tied to a specific distress dialogue algorithm - it begins with the phrase 'Are you hurt?'. Successful completion converts the NPC into an active companion.

How many companions can I have active at once?

All six companions can be active simultaneously. There is no crew slot cap. The roster is: Shipwright Tomo, Navigator Iris, Harpooner Jax, Scout Mira, Medic Pip, and Engineer Rook.

What is the Magellan badge?

A hidden achievement awarded to players who traverse the absolute mathematical perimeter of the instance's map coordinate grid. As of June 2026, only 7,717 players have earned it globally.

How rare is the Rescued! badge?

1.1% global completion rate as of June 2026, with 262,956 total badges awarded. To earn it, you must reach Bonfire Level 5 and survive the Day 100 extraction event.

What are the server performance characteristics?

Average FPS is 59.97 with a standard deviation of 0.096 - exceptionally stable. Average ping is 169.76ms with a standard deviation of 194.157ms and maximum spikes of 1,460ms. High-ping servers (>250ms) significantly impact dodge timing on Lord of Lava meteors and Kraken tentacle telegraphs.