Ocean

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BiomeBannerOcean.png

The Ocean is a biome found at both left and right edges of a world, comprising both the easternmost and westernmost 338 tiles (676 feet) of the world[1][2]. It consists of a sandy beach and a large body of water that extends toward the end of the world, with Shell Piles being occasionally generated in clumps. Palm trees grow on the surface, and can be cut down for Palm Wood. Seashells and Starfish are found commonly on the surface and underwater, and can grow over time. Corals also grow on the seabed.

Enemies in the Ocean include Crabs, Pink Jellyfish, and Sharks. Squids and Sea Snails rarely appear underwater, and respectively drop Black Ink and Purple Mucus. Critters in the Ocean include Dolphins, Seagulls, Seahorses, and Sea Turtles.

Oceans will commonly contain Water Chests with loot pertaining to water.

Contents

Characters
Water Chest treasures
Unique Drops
From Sharks:
From Crabs or Sharks:
From Squids:
From Sea Snails:
From Pink Jellyfish:
From Duke Fishron:
From any enemy in Hardmode:
From terrain/vegetation:
From Shaking Palm Trees:
From fishing:
From Angler Quests:
For Sale
Music

NPC happiness

OceanOcean
Loved byn/a
Disliked by
Hated byn/a

For more information, see NPC happiness.

Notes

  • Like other enemies with Swimming and Jellyfish AIs, Ocean enemies will only detect and swim toward the player if they are in the water to a depth of at least one tile.
  • If the beach of an Ocean extends long enough towards inland, surface Desert enemies may spawn, but Desert plants will not grow in areas near water.
  • Hardmode Corruption/Crimson or Hallow can convert all the sand into Ebonsand/Crimsand/Pearlsand, which can allow Corrupted/Crimson/Hallowed Desert enemies to spawn.
    • If one is looking for Ocean-exclusive fishing catches, it is necessary to keep the Ocean pure, otherwise no exclusive fishing catches can be obtained.
  • Unlike other biomes, the water in the Ocean does not turn red during a Blood Moon.
  • The Corruption/Crimson or Hallow can spread to the Sand Blocks out of the world's border.
  • Sometimes, the sea bed can generate below the Surface layer, causing a bit of the Underground's background to appear and seaweeds to grow on Sand.
  • The Ocean biome cannot be artificially created, nor can it be expanded.

Generation variants

Desktop version Console version Mobile version
Desktop/Console/Mobile-Only Content: This section's information applies only to the Desktop, Console, and Mobile versions of Terraria.

Ocean cave

Map view of an Ocean cave on the left side of the world.

Oceans have a 1/3 (33.33%) chance of generating with a cave[3], which consists of a water-filled tunnel with a ceiling made of hardened sand beginning at the ocean floor. This tunnel has an additional chance of generating Water Chests, which have equal chances of containing each primary item. It is decorated with long strands of Seaweeds growing from the sand floor.

Florida style

Map view of a Florida style ocean on the right side of a world.
Map view of a Florida style ocean with an ocean cave generated on the left side of the world.

The world has a 1/4 (25%) chance to generate one of the oceans as Florida style.[4] This variant inverts the slope of the beach, with long beaches becoming steeper near the world edge.

Tips

For tips on navigating the Ocean, see Guide:Surviving in the Ocean.
  • Players exploring the Ocean run the risk of drowning if not equipped with the proper accessories. In addition to plenty of healing potions, items and potions that aid breathing, such as the Breathing Reed and Gills Potion, a Magic Mirror for returning home quickly, and Flippers to aid swimming should be brought along. Hooks may also be of some help in returning to the surface for breath. The Neptune's Shell or any of its upgrades removes the need to breathe altogether.
  • Players may drain the Ocean by tunneling down to the Underworld, where water evaporates.
  • Another way of draining the Ocean is by making an air pocket, emptying a Lava Bucket in it and placing a background object (e.g. furniture) in the lava. Allowing water to flow in will cause it to disappear, as the object prevents Obsidian from being generated.
  • When attempting to preserve the Ocean biome from being infected in Hardmode, simply digging a horizontal gap under the seabed is insufficient because world data extends a little past the edge of the world. The gap must be created vertically along the beach of the Ocean to prevent the spread of Corruption/Crimson or Hallow.
  • The Oceans have a lot of space, making them good places for large-scale builds like arenas and farms.
  • While it is impossible to expand the Ocean biome further inland, the player may extend the watery area to the inner edge of the naturally spawning beach.

Trivia

  • The Ocean Night theme used to be exclusive to the Console version Console version, Old-gen console version Old-gen console version, and Nintendo 3DSNintendo 3DS version version before the 1.4.0.1(Desktop, Console and Mobile versions) update.
  • It is possible for a Florida style Ocean to generate with a cave.
  • Ocean fish are normally higher priority than Oasis fishing catches, due to the ocean naturally being a desert. However, if the Ocean is Hallow, Hallow catches are higher priority than Ocean catches, but fishing in this case will give Oasis fishing catches half the time due to being a Hallowed Desert.

Gallery

Backgrounds

This content is transcluded from Biome backgrounds § Ocean.

  • Classic distant green, mountainous islands.
    Classic distant green, mountainous islands.
  • Distant sandy islands with palm trees and moʻai.
    Distant sandy islands with palm trees and moʻai.
  • Distant sandy islands without moʻai.
    Distant sandy islands without moʻai.
  • (Desktop, Console and Mobile versions) Distant islets and sea stacks.
    (Desktop, Console and Mobile versions) Distant islets and sea stacks.
  • (Desktop, Console and Mobile versions) Distant alternative islands.
    (Desktop, Console and Mobile versions) Distant alternative islands.
  • (Desktop, Console and Mobile versions) Distant mountains with mesas. Has a different, brighter water color. Uses art from the 3DS background.
    (Desktop, Console and Mobile versions) Distant mountains with mesas. Has a different, brighter water color. Uses art from the 3DS background.
  • A background from the 3DS version.
    Nintendo 3DS version A background from the 3DS version.

(Desktop, Console and Mobile versions) Underground layer

  • Normal version
    Normal version
  • Corrupt version
    Corrupt version
  • Crimson version
    Crimson version
  • Hallowed version
    Hallowed version

History

  • Desktop 1.4.4:
    • Ocean water is now slightly more transparent and easier to see in.
    • Ocean cave generation chance increased from 1/4 (25%) to 1/3 (33.33%).
  • Mobile 1.4.0.5.0: Added all features and changes from Desktop 1.4.0.1 to 1.4.0.3.


References

  1. ↑ Players cannot come within 41 tiles from the absolute edge of the world. Thus, from a player's perspective, the oceans end roughly 338 tiles (676 feet) from either lateral end, but technically they actually end 380 tiles (760 feet) from either end. Information taken from the Desktop version Desktop 1.4.0.5 source code, method BordersMovement() in Terraria.Player.cs. There may be inaccuracies, as the current Desktop version Desktop version is 1.4.4.9.
  2. ↑ Information taken from the Desktop version Desktop 1.4.0.5 source code, method oceanDepths() in Terraria.WorldGen.cs. There may be inaccuracies, as the current Desktop version Desktop version is 1.4.4.9.
  3. ↑ Information taken from the Desktop version Desktop 1.4.4.9 source code, method GenerateWorld() in Terraria.WorldGen.cs. The related world generation pass is "Create Ocean Caves".
  4. ↑ Information taken from the Desktop version Desktop 1.4.4.9 source code, method GenerateWorld() in Terraria.WorldGen.cs. The related world generation pass is "Beaches".
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