The Island Castaway Lost World Walkthrough Chapter 3

Here’s a useful walkthrough for Chapter 3 of The Island: Castaway / Lost World (depending on your version—often the same gameplay, just different titles).

Step 3.1: Lighting the Brazers

You’ll find a massive stone door carved with three animal symbols: Jaguar, Parrot, Snake. In the center, a hexagonal pedestal requires three gems.

To get the gems, you must light three braziers in the correct order: the island castaway lost world walkthrough chapter 3

  1. Brazier of Wind (Top of the central pillar): Shoot it with a flaming arrow. (Craft a bow + fire arrow using stick, vine, cloth, and animal fat).
  2. Brazier of Water (Underground pool): It’s underwater. You can’t light it normally. Instead, throw your lit torch into the pool. The game considers this a “valid heat source” due to the methane gas in the water. (This is a common softlock if you don’t have a spare torch).
  3. Brazier of Earth (Behind the collapsed statue): Requires the Iron Crowbar (craft from 4 scrap metal and a branch). Pry open the rubble, then light it normally.

Once all three are lit, the pedestal rises. Place your Obsidian Key into it (the key is also the final gem puzzle piece). The door opens.

1. Starting Point

  • You wake up on the beach after the shipwreck (Chapter 1–2 recap).
  • Head inland following the footprints or the stream (fresh water source).

4. Important Crafting Recipes (Chapter 3)

  • Spear = Long stick + sharp stone + fiber
  • Water container = Large leaf + fiber (to carry water from stream to camp)
  • Simple trap (for small animals) = Stick + fiber + stone

Step 2.2: The Three Fuses – A Treasure Hunt

Fuse #1 – The Bilge (Easy)

  • Enter the ship through the gash on the port side (left).
  • Climb down the emergency ladder. The bilge is flooded with waist-high oil. Do not use your lighter here (instant explosion).
  • The fuse is on a circuit breaker next to a dead rat. Simply walk over and pick it up.

Fuse #2 – The Mess Hall (Mid Difficulty)

  • Climb to Deck 3 (use the exterior scaffolding).
  • The mess hall door is jammed. You need 15 Strength to pry it open. If you haven’t been eating cooked meat regularly, you’ll only have 10.
  • Workaround: Find the broken vent on the ceiling of Deck 2. Stack two empty barrels (found in the cargo hold) to reach it. Crawl through the vent.
  • Inside the mess hall: The fuse is inside a microwave. A scripted jumpscare—a seagull flies out—but no actual danger.

Fuse #3 – The Reef Serpent (Boss Encounter) Here’s a useful walkthrough for Chapter 3 of

  • This is Chapter 3’s first major boss. Go to the bow (the submerged front of the ship) during low tide.
  • You’ll see a glowing blue nest. The fuse is inside. The moment you touch it, the Reef Serpent (a giant eel-like creature) emerges.

How to defeat the Reef Serpent:

  1. Do not fight it in water. Lure it onto the rocky outcrop to the south.
  2. The serpent attacks in a three-bite pattern. Dodge left, left, then right.
  3. Use your Obsidian Knife’s special attack (hold RMB + LMB) to stab its gills after each dodge.
  4. After three cycles, it will retreat. You get the fuse and Serpent Scale (crafting material for a poison dagger later).

Return all three fuses to the engine room on Deck 1. Insert them. The ship’s crane groans and lowers, clearing the channel. Brazier of Wind (Top of the central pillar):

3. Dangers & Tips

  • Wild boars / snakes – Avoid at night. Use a spear (stick + sharp stone) to defend.
  • Poisonous berries – Red with black spots = bad. Yellow or blue berries = safe (small energy).
  • Nightfall – Always sleep in your shelter (saves progress, restores health).

2. The Broken Bridge

  • Continue east to a ravine with a broken rope bridge.
  • Examine the broken side – you need a hook and rope to cross.
  • You have vines, but no hook yet.

1. The West Shore – Unlocking the River Path

After the cutscene with the mysterious radio static, head west from your main camp until you find a boulder blocking a narrow river inlet.
Puzzle: Use the iron crowbar (crafted from scrap metal in Chapter 2) to pry loose the boulder.

Pro tip: If you didn’t craft the crowbar yet, backtrack to the crashed lifeboat site. The game soft-locks here for impatient players. Always check your crafting tree.

7. Lighting the Torch

  • Head east from the pit to a dark cave entrance (Cave of Embers).
  • Inside, you need light. Search the cave floor for flint (sparkles near the left wall).
  • Combine Flint + Rusty Knife → sparks → light the Torch.
  • With torch lit, explore deeper: find Iron Key on a skeleton.