Night Survival Guide — 100 Days At Sea

How the Day/Night Loop Works

Day: harpoon resources, sail to islands, craft at your raft bench, and stock food. Night: enemies attack your raft — survive until dawn to advance the day counter toward Day 100.

Skipping raft upgrades to rush islands backfires — underdefended bases wipe on the first hard invasion wave around Days 10–20.

Coins passively accrue from surviving nights — Merchant class (+20% sell price) stacks with night income when you vendor loot the next morning.

Alien Invasion (July 2026) layers themed threats onto this loop — see alien invasion event for event-specific prep.

Essential Raft Defenses

Bonfire (5 Wood + 3 Stone + 1 Flint): warmth and cooking — mandatory before first overnight sail from crafting.

Container Shelter (20 Scrap Metal + 10 Wood): reduces rain and cold exposure during docked nights and Ice approach — raft building.

Raft Expansion (15 Wood + 8 Rope + 5 Nails): more structure slots for defenses and crafting stations.

Weapon bench priority: Flintlock Pistol before Desert Island; upgrade to Scoped Rifle tier before Kraken Zone on weapons.

Camper class (+10% building speed) accelerates shelter and expansion placement for players who night-fail from slow construction.

Best Classes for Night Defense

Sharpshooter (+25% ranged, +10% crit): primary night DPS — clears spawn points from raft perimeter.

Soldier (+15% defense): front-line tank when enemies board the raft deck.

Medic (+15% health regen): sustain through multi-wave nights without burning entire Medkit stacks.

Night (+20% night vision): visibility advantage during fog or low-light invasion phases — strong on Shipwreck and Bermuda routes.

Pirate (+15% all damage): flexible DPS with Cutlass + Pistol starter for mixed-range nights.

Crewmate (+10% team XP): co-op groups grinding event nights for class unlock progress.

Full tier list on tier list.

Consumables and Pre-Night Checklist

Medkits (5 Cloth + 3 Herbs + 1 Alcohol): heal 50% HP — stock 5+ before Days 15–30, 10+ before Volcano and Ice.

Cooked meals beat raw fish — hunger drain during long fights wastes DPS windows. Fishing Rod + Bonfire minimum; Cooking Pot for efficiency.

Ammo check: Flintlock and Scoped Rifle users verify Gunpowder reserves after Desert and Shipwreck farms.

Repair materials: Wood and Scrap Metal for mid-fight raft patch jobs when enemies damage structures.

Pre-night routine: eat, repair raft, refill ammo, assign co-op positions, confirm Bonfire fuel.

Co-op Night Roles

Four-player split: Sharpshooter north spawn, Cowboy/Pirate south spawn, Soldier mid-boarding defense, Medic rear sustain.

Call out wave numbers and low HP — Crewmate XP aura rewards coordinated clears.

Do not leave the raft during active invasion unless fetching critical ammo from adjacent storage — split teams fail event nights.

Full co-op framework on co op strategy.

Common Night Failures and Fixes

Failure: no ranged weapon before Day 10. Fix: craft Flintlock Pistol from Shipwreck or Desert Iron/Gunpowder.

Failure: hunger mid-fight. Fix: cook before dusk; Seagull companion (Pirate Chest) automates food every 120s.

Failure: cold plus invasion on Ice route. Fix: warm meals from ice region update before sailing north.

Failure: four DPS, zero sustain. Fix: at least one Medic or Survivor in co-op rosters.