"The ocean depths are trembling..."
The Abyss is an aquatic biome added by the Calamity Mod which spawns upon world creation. It is located under the Sulphurous Sea on the Dungeon side of the world, and is extremely deep, dark, and perilous. It is filled with deadly enemies, which increase in strength as the biome grows deeper. Because many enemies in the Abyss are initially passive, only becoming hostile when hit or when in close proximity to the player, stealthiness should be greatly prioritized while exploring the biome.
The Abyss is divided into four distinct layers, each with a different set of enemies that will spawn.
- Layer 1 is empty and open, populated by enemies that are relatively benign but still hostile, potentially threatening to unprepared players. This layer is recommended to be explored after defeating Skeletron.
- Layer 2 contains islands, either connected to the side of the Abyss or floating in the middle. The middle islands always have a "house" sitting on top of them, which holds a locked Shadow Chest containing unique Abyss weapons and accessories. This layer is recommended to be explored during Hardmode or, if prepared enough, late Pre-Hardmode.
- Layer 3 is identical to layer 2 in terms of structures, although the enemies present are significantly more dangerous. At this depth, the player's vision will become completely darkened without the aide of special equipment such as the Lumenous Amulet. This layer is recommended to be explored in late Hardmode or after defeating Moon Lord.
- Layer 4 opens back up into a large empty space before the Abyss closes in at a point. The most dangerous enemies are present in this layer, and as such it is only recommended to explore after defeating several Post-Moon Lord bosses, namely the Polterghast.
The upper two layers of the Abyss are mostly composed of Abyss Gravel, with Abyss Gravel Walls as a background. The third layer begins replacing Abyss Gravel with Voidstone and Voidstone Walls, while the fourth layer is completely made out of Voidstone. It also contains Planty Mush, Tenebris and Chaotic Ore in the 2nd and 3rd layers. Several Pots are scattered around the islands, containing several useful drops.
Contents[edit | edit source]
|Characters||Unique Treasures||Unique Drops|
Layer 1, 2 and 3:
Layer 2 and 3:
Layer 3 and 4:
|From Shadow Chests:
From all Abyss enemies in Revengeance Mode:
Light Level[edit | edit source]
Without a sufficient level of light, the player's vision may be reduced (similarly to the Darkness debuff) or blackened completely (similarly to the Obstructed debuff), depending on how deep they've descended into the Abyss.
- In Layer 1, the player's vision will be reduced unless they have a light level of 1 or higher.
- In Layer 2, the player's vision will be blackened unless they have a light level of 1 or higher, and reduced unless they have a light level of 3 or higher.
- In Layer 3, the player's vision will be blackened unless they have a light level of 3 or higher, and reduced unless they have a light level of 5 or higher.
- In Layer 4, the player's vision will be blackened unless they have a light level of 5 or higher, and reduced unless they have a light level of 7 or higher.
The following items increase the player's light level. These values are cumulative, and stacking several of them at the same time is required for maximum vision in the Abyss.
- Crimson Heart, Shadow Orb, or Magic Lantern pet: +1 to light level
- Jellyfish Necklace, Jellyfish Diving Gear, or Arctic Diving Gear: +1 to light level
- Abyssal Diving Gear: +1 to light level (inherits Arctic Diving Gear's bonus for +2 light level in total)
- Fairy or Flickerwick pet: +2 to light level
- Shine buff or Lumenous Amulet: +2 to light level
- Wisp, Suspicious Looking Eye, or Young Siren pet: +3 to light level
The breath meter drains more quickly in the Abyss, with each deeper layer applying more severe breath loss. Players with zero breath in the Abyss will lose health far more rapidly than if they were drowning in normal water. Finally, the Crush Depth debuff is commonly inflicted by enemies in the Abyss and causes the player's breath to drain even quicker. These conditions make underwater breathing equipment a necessity for players wishing to explore the Abyss.
The first layer of the Abyss reduces the player's breath by 2 every fifth of a second, resulting in a net loss of 10 breath per second. Each layer beyond the first reduces the player's breath three times as quickly as the previous: the second layer takes away 30 breath per second, the third layer takes away 90, and the fourth takes away 270.
The Abyss ignores all items that normally grant permanent underwater breathing, such as the Gills Potion, Neptune's Shell, and the Ocean Crest. These items are still useful as they separately help reduce the breath loss the Abyss applies to the player.
Breath loss rate[edit | edit source]
The following items reduce how frequently the Abyss takes breath away from the player. These effects add together to create an overall delay multiplier that slows down the Abyss' breath loss:
- Gills buff, Ocean Crest, or Aquatic Emblem: +4
- Any effect which lets the player ignore water physics, such as the Flipper Potion: +5
- A full set of Victide armor: +5
- Diving Helmet: +10
- Arctic Diving Gear: +10
- Neptune's Shell, Moon Shell, or Celestial Shell: +15
- Siren's Heart after Skeletron has been defeated: +20 (ignores water physics and adds +15 on its own)
- Abyssal Diving Gear: +20 (combines Diving Helmet and Arctic Diving Gear)
- Abyssal Diving Suit: +35 (inherits Abyssal Diving Gear and adds +15 on its own)
The delay multiplier is capped at 50. The Abyss takes away breath
DelayMultiplier + 1 times more slowly from the player.
Breath loss amount[edit | edit source]
The following items reduce the quantity of breath taken away by the Abyss. These effects do not multiply together. Rather, they add onto each other and create an overall percentage to reduce the Abyss' breath loss by:
- Gills buff, Ocean Crest, or Aquatic Emblem: -20%
- A full set of Victide armor: -20%
- Diving Helmet: -25%
- Arctic Diving Gear: -25%
- Neptune's Shell, Moon Shell, or Celestial Shell: -30%
- Siren's Heart after Skeletron has been defeated: -30%
- Abyssal Diving Gear: -50% (combines Diving Helmet and Arctic Diving Gear)
- Abyssal Diving Suit: -80% (inherits Abyssal Diving Gear and adds -30% on its own)
This percentage reduction is capped at 95%. At this cap the Abyss removes 20 times less breath from the player.
Drowning damage[edit | edit source]
A player drowning in the Abyss takes extra damage in addition to the vanilla game's health drain from drowning. More precisely, the Abyss reduces the player's health instead of their breath if their breath meter is empty. With no relevant equipment, drowning in the Abyss deals an extra 60 damage per second. This damage is reduced to 15 per second if the Depths Charm or one of its upgrades is equipped. The extra drowning damage dealt by the Abyss is slowed down by all items which reduce the rate of breath loss.
Being in the Abyss decreases the player's defense, with more severe reductions occurring at the deeper levels. All of these defense reductions can be reduced to one-third effectiveness by equipping the Anechoic Plating or Abyssal Diving Suit:
- Layer 1: -15 defense (-5 if wearing appropriate accessory)
- Layer 2: -30 defense (-10 if wearing appropriate accessory)
- Layer 3: -60 defense (-20 if wearing appropriate accessory)
- Layer 4: -120 defense (-40 if wearing appropriate accessory)
Unlike many defense reducing effects, the Abyss can reduce the player's defense below zero, causing them to take increased damage.
Fishing in the Abyss will warrant different catches based on fishing power, and are as follows:
- Planty Mush - Can only be caught with 0 to 80 fishing power.
- Planty Mush's coded requirement is actually 40 to 80. However, as this item replaces Junk catches in the Abyss, it is technically 0 to 80.
- Alluring Bait - Can only be caught with 60 to 120 fishing power.
- Anechoic Plating, Depths Charm, Iron Boots, and Strange Orb - Can only be caught with 80 to 140 fishing power in Hardmode.
- Abyssal Amulet - Can only be caught with 100 to 160 fishing power.
Notes[edit | edit source]
- Being in any layer of the Abyss below the first layer will disable natural life regen, much like the Bleeding debuff. This can be prevented by equipping the Depths Charm, Abyssal Diving Gear, or Abyssal Diving Suit.
- Equipping any of these accessories will also halve the amount of damage taken from running out of breath in the Abyss.
- Empty Buckets and the Super Absorbant Sponge cannot be used in the Abyss.
- Lava and Honey buckets can not be placed in water inside of the Abyss.
- Creature Detection (such as the Radar or Hunter Potions) will not work in the Abyss.
- It is possible that the entrances into the Shadow Chest rooms will be blocked, requiring the player to slowly mine through the Abyss Gravel to get into them.
- Sometimes in Small or Medium sized worlds, and very rarely in Large worlds, the Abyss will generate over the Dungeon.
- It is possible to break holes into the Underworld from the Abyss. Doing so will drain the Abyss of water and may lead to the flooding of the entire Underworld.
- Because Abyss Gravel leaks water naturally, should the Abyss be drained on accident, so long as said drain is plugged the Abyss will eventually fill back up over time.
- The Abyss biome is defined by world position rather than the blocks present, meaning that any entering any water beneath the world's Dungeon-side Ocean will cause the player to be considered as inside the Abyss, and all of the related effects will occur, even if the world was initially generated without Calamity installed. However, this also means that an artificial Abyss cannot be created by relocating Abyss Gravel or any other Abyss blocks.
- If the world was generated without Calamity installed, most of the Abyss's unique physical loot can still be obtained from other sources. The chest items and Planty Mush can be caught from Fishing, Chaotic Ore can be obtained from Chaos Slimes, and Voidstone drops from several Abyss enemies. Tenebris, however, is unobtainable without a physical Abyss.
Tips[edit | edit source]
- While you can explore the entire biome even while in Pre-Hardmode, you are very unlikely to survive due to the intense pressure and strong enemies present in the deeper parts of the Abyss.
- The Siren's Heart and the Shrimpy Truffle can prove very useful due to their increased mobility in water. The Cute Fishron mount is always wet and increases damage whereas the the Siren's Heart grants the Siren Speed buff.
- Do not use the Rod of Discord in the Abyss, as this will summon the incredibly powerful Adult Eidolon Wyrm, regardless of your progression through the game.
Trivia[edit | edit source]
- The theme that is heard while in the upper two layers of the Abyss is Hadopelagic Pressure, which was composed by the artist DM DOKURO.
- The theme that is heard while in the lower two layers of the Abyss is R'LYEH, which was made by wiki editor RoverdriveZ
- DM DOKURO has also made a theme for the lower two layers of the Abyss, known as void, which is not currently used in-game. It is unknown if it will be implemented in the future.
- Some of the creatures in the Abyss are based off of the game Subnautica, though most are based on real life ocean creatures.
- If you drown in the Abyss, the death message "[Playername]'s legs appeared where his/her head should be." shows, which is the death message when dying to damage caused by the Chaos State debuff.
- The Abyss generates under the Dungeon-side Ocean in order to prevent conflict with the Thorium Mod's Aquatic Depths biome, which always generates under the Jungle-side Ocean.
|Biomes and Structures|
|Biomes||Abyss • Astral Meteor • Brimstone Crag • Sulphurous Sea|
Cavern • The Corruption • The Crimson • Desert • Dungeon • The Hallow • Jungle • Jungle Temple • Mushroom • Ocean • Space • Snow • Surface • Underground • The Underworld
|Structures||Evil Island • Ice Tomb • Planetoid • Shrine|