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Islands are Environmental elements in Raft.


Islands are the main points of interest in Raft. They contain various food items and plants, as well as other useful Materials located on the surrounding ocean floor. Islands come in different shapes and sizes, with the available Materials depending on type and size of the Island. Abandoned Huts can be found on islands and underwater. All islands are designed by hand, so the player may eventually find islands previously explored. Materials as well as Sustenance items are always located in same spots.

Island types are divided into biomes, which have different appearance and loot. The biomes currently match the released chapters meaning each chapter has its own biome introduced alongside it. The most common islands are within the Tropical Biome, which was included in the Steam release of the game. It is characterized by islands with Palm Trees, Mango Trees, grass, Tameable Animals, as well as the enemies Warthogs and Screechers. Next comes the Evergreen Biome, the biome of the First Chapter, which has Pine Trees, Birch Trees, Bee Swarms, Natural Beehives, and the Bear as its main enemy. The Second Chapter introduced the Desert Biome, which is easily identfied by its sand-covered surface, cacti, and broken RVs.

Islands within the Tropical Biome are currently labelled as being either small or large. The Materials available are roughly the same, regardless of size, however Large Islands introduce Animals of both neutral and aggressive nature. The Large Island also provides a few additional items that are almost exclusive to Large Islands, with the exception of two small, Rare Islands. For an exhaustive list, see below.

Islands are spawned based on their relative distance to the raft. Islands will spawn outside the player's visible range and then come into sight as the raft moves closer. For the same reason, if the player forgets to anchor their raft, an Island will despawn even if the player is still on it if the raft moves out of range. Additionally, the type of island the player will find are based on the raft's relative distance to key destinations within each biome. These are Balboa Island and Caravan Island. Being close to neither will spawn islands from the Tropical Biome.

It is not possible to build structures on Islands.

Tropical Biome[]

The Tropical Biome is the first biome the player will experience. All early-game Materials are found here in large amounts. Islands from the Tropical Biome can be found from the start of the game and at any time the player is not near Caravan Island and Balboa Island. They are further categorized as being either Small or Large.

Small Tropical Islands[]

A Small Island Seen from Above

Item Overview
On land: Black Seed.png Blue Seed.png Red Seed.png White Seed.png Yellow Seed.png Coconut.png Mango.png Pineapple.png Watermelon.png Mango Seed.png Pineapple Seed.png Watermelon Seed.png Palm Seed.png
Underwater: Seaweed.png Giant Clam.png Clay.png Sand.png Metal Ore.png Copper.png Scrap.png Stone.png

There are a number of Small Island Variants, each with their own theme

The following resources can be found on most small islands, as well as Large Islands.

The following resources can be found underwater around Small Islands:

Rare Islands[]

There are two small, Rare Islands on which the player can find special items. Whenever the game spawns an island from the Tropical Biome, there's a 2% chance that it can be either of the following rare islands.[1] Both Rare Islands unlock a Steam Achievement. Shipwreck Island unlocks 'O Captain! My Captain!?' and Plane Crash Island unlocks 'Not a great landing!'.

As the name suggests, a small shipwreck can be found on this island. In the wreck, the player can find:

  • A decorative item; the Captain's Hat.
  • A Radio which plays music. It can either be held as a boombox or placed on the raft.

On this island the player can find a crashed air plane on the topmost hill. Following items can also be found:

Large Tropical Islands[]

Large Island Seen from Above

The player can find large island before the Receiver is built. Otherwise they appear in the Receiver screen as green dots.

Item Overview
On land: Dirt.png Red Berries.png Cave Mushroom.png|
Underwater: Silver Algae.png Scrap.png Metal Ore.png Copper.png

The following resources are exclusive to the Large Tropical Islands, though not guaranteed (certain exceptions occur).

The large trees on these islands cannot be harvested, as is the case with the bamboo.

Apart from the unique resources on the Large Islands, a number of Animals may be found:

Evergreen Biome[]

Main article: Evergreen Biome

The Evergreen Biome was introduced with the First Chapter, and has Balboa Island as its main biome-type destination. The surrounding islands share the same Trees as well an abundance of Scrap that can be found in the water surrounding the islands.

The Evergreen Biome holds the following Materials and entities:

Desert Biome[]

Main article: Desert Biome

With the Second Chapter came the Desert Biome, which matches Caravan Island in look and loot. The generic Desert Biome islands around Caravan Island are fairly small and hold no unique Materials. However, the waters around the islands have Poison-Puffers swimming about, making it the first common small island to allow the players to farm for Explosive Goo.

Following are the main features of the Desert Biome islands:

  • Mudhogs roam the islands.
  • A few Bee Swarms as well as Natural Beehives can be found.

Story Islands[]

Following the Story of the game, the player will experience islands and places that are completely unique and offer different loot and objectives than the rest of the game.

Radio Tower[]

Main article: Radio Tower

The first stop on the journey. The Radio Tower is a platform, half sunk into the ocean. It's support-beams rely entirely on a single rock formation.


Main article: Vasagatan

A luxury yacht, beached on a small island. Home of Lurkers and darkness. Consists of many decks, which the player must climb to reach the next clue.

There are a total of 13 notes available on the Vasagatan - collecting all of them will unlock an the achievement 'Vasagatan Historian!'.


Main article: Balboa Island

Balboa Island is the last island in the First Chapter. Balboa is home to Bears, as well as Birch Trees and Pine Trees, which drop Birch Seeds and Pinecones, respectively. Harvestable trees are significantly smaller than their decorative counterparts.

Left is harvestable, while right is not.

Balboa in fog.png

  1. Game files: chunkspawnerrule_pilot.asset chunkspawnerrule_boat.asset.

Caravan Island[]

Main article: Caravan Island

Caravan Island is the first island in the Second Chapter. It is a Desert Biome island, which is home to mutated warthogs called Mudhogs. The island, true to its name, is filled with old caravans (also known as motorhomes) that have been slightly torn down and stacked on top of each other, with ladders added for easy traversal between the houses. Most of the caravans have open-able drawers with item bundles that the player can pick up.


Main article: Tangaroa

Tangaroa is the last location in the Second Chapter. It is not an island per se, but rather a floating city encased in a glass dome, with engines allowing it to move. It is by far the most technologically advanced location in Raft so far, as well as arguably the most complex one in terms of details and features.


Early Access
Update 13 Large islands can be found without the Receiver.
Update 12 Tangaroa and Caravan Island added to the game.
Update 7 Large Islands added to the game.
Plane Crash and Shipwreck Island added to the game.
Update 1 Small Islands added to the game.