The Ocean is a biome found at both left and right edges of a world, comprising both the easternmost and westernmost 676 feet (338 blocks) of the map[1][2]. It consists of a sandy beach and a large body of water that extends toward the end of the map, with Shell Piles being occasionally generated in clumps. Palm Trees grow on the surface (since 1.2.4), and can be harvested 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[]
-
Sleeping Angler - Pink Jellyfish
- Crab
- Squid(uncommon)
- Sea Snail(rare)
- Shark
- Orca
- Duke Fishron(Spawns only while fishing with a Truffle Worm as bait)
- Shark Fin
- Shark Kite(During a Windy Day)
- Diving Helmet(rare)
- Shrimp Po' Boy(rare)
- Jellyfish Necklace(rare)
- Glowstick
- Pink Jellyfish Kite(rare)
- Pirate Map(rare)
NPC happiness
 Ocean | |
|---|---|
| Loved by | n/a |
| Liked by | |
| Disliked by | |
| Hated by | n/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 Ocean has enough "dry" sand, surface Desert enemies may spawn, but the area near the water will not start growing desert plants.
- Hardmode Corruption/Crimson or Hallow can convert all the sand into Ebonsand/Crimsand or Pearlsand, effectively converting the Ocean into a Corrupted/Crimson or Hallowed Desert biome.
- Although the Ocean appears to reach the edge of the world, 3rd party map viewers will show that it actually extends for several blocks more. The Corruption/Crimson or Hallow can spread to the sand via these unseen extra blocks at the sea bed.
- Sometimes, the sea bed can generate below the surface layer, causing a bit of the underground's background to appear and
seaweed to grow on sand.- If the sea bed is low enough, it is possible to find Heart Crystals, desert Underground Cabins and Campsites on the Ocean floor.
- It is not possible to expand the Ocean biome further inland than its natural size.
- On the PC, Console, Mobile, Old Chinese, tModLoader, and tModLoader Legacy versions, the Ocean Day music track will play no matter what time it is, and on the Old-gen console, Windows Phone, and versions, the Ocean Night music track will play no matter what time it is.
Generation variants[]
Ocean cave
Map view of an Ocean cave on the left side of the world.
Oceans have a 25*1/4 (25%) chance of generating with a cave, 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 (as in the game code) 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 25*1/4 (25%) chance to generate one of the oceans as Florida style. This variant inverts the slope of the beach, with long beaches becoming steeper near the world edge.
Tips[]
- 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. The Grappling Hook or Ivy Whip 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 not currently possible to expand the Ocean biome further inland, it is possible to extend the watery area to the inner edge of the naturally spawning beach.
Trivia[]
- The Old-gen console, Windows Phone, and version's Ocean music used to be exclusive to only those versions, but has since been implemented into the PC version as the Ocean Night theme.
- Sea caves can sometimes form during world-gen.
- The oceans of Earth are bodies of salt water covering approximately 70.8% of the surface of Earth and contain 97% of Earth's water.
Gallery[]
Backgrounds[]
This content is transcluded from Biome backgrounds § Ocean.
-
Classic distant mountains -
Distant sandy islands with palm trees and moʻai -
Distant sandy islands without moʻai -
Distant islets and sea stacks -
Distant alternative islands -
Distant mountains with mesas. Has different water color.
-
Normal version
-
Corrupt version
-
Crimson version
-
Hallowed version
History[]
- Desktop 1.4.0.3: Fixed a bug where Ocean critters would spawn in Ocean Caves.
- Desktop 1.4.0.1:
- Added a new music track, Ocean Night. This track was previously exclusive to the Console version and 3DS version.
- Added Ocean (Otherworldly) track from the canceled game, Terraria: Otherworld.
- Oceans now have new variants and terrain generation.
- Added three new backgrounds.
- Added a unique Underground layer background when in the Ocean.
- Added Sea Turtles, Dolphins, Seahorses and Seagulls.
- Added Lightning Whelk Shells, Junonia Shells, Tulip Shells and Shell Piles.
- Shells and Starfish will now generate over time on beaches.
- Sharks and Pink Jellyfish now drop their respective Kites on Windy Days.
- Crabs and Sharks now drop Shrimp Po' Boy.
- Ocean Crates can now be caught by Fishing.
- Coconuts and Bananas can now be obtained by shaking Palm Trees.
- Added a new music track, Ocean Night. This track was previously exclusive to the Console version and 3DS version.
- Desktop 1.2.4.1: Ocean enemies can now spawn on biome oceans, this applies to the Sleeping Angler as well.
- Desktop 1.2.4:
- Now has its own tree type.
- Seashells and Starfish have been added.
- Attempting to fish with a Truffle Worm in the Ocean will summon Duke Fishron.
- Desktop 1.2:
- Now has its own music.
- Golden Chests have been replaced with Water Chests.
- New enemies: Sea Snail and Squid.
- Enemies in the ocean can now drop Pirate Maps in Hardmode
- Desktop 1.1: Now has its own background.
- Desktop 1.0.5:
- Ocean generation has been improved and it has become slightly larger.
- Coral now grows on the ocean floor.
- New enemies: Crab, Pink Jellyfish, Shark
- Desktop-Release: Introduced.
- Console-Release: Introduced.
- Switch 1.0.711.6: Introduced.
- Mobile 1.4.0.5.0: Added all features and changes from Desktop 1.4.0.1 to 1.4.0.3.
- Mobile-Release: Introduced.
- 3DS-Release: Introduced.
References[]
- ↑ Players cannot come within 41 tiles from the absolute edge of the map. Thus, from a player's perspective, the oceans end roughly 338 tiles (686 feet) from either lateral end, but technically they actually end 380 tiles (760 feet) from either end. Information taken from the PC 1.4.0.5 source code, method
BordersMovement()inTerraria.Player.cs. There may be inaccuracies, as the current PC version is 1.4.4.9.
- ↑ Information taken from the PC 1.4.0.5 source code, method
oceanDepths()inTerraria.WorldGen.cs. There may be inaccuracies, as the current PC version is 1.4.4.9.
