Abandoned Deep-Sea Tunnel

From Elwiki

Abandoned Deep-Sea Tunnel[edit]

A hidden area submerged under the sea. A sharp metal sound echoes through the dark tunnels.


This seemingly abandoned deep-sea tunnel harbors a secret.
Recommended Level
Required Combat Power
Dungeon Layout

Environmental Debuff - Demon Realm

  • The El's power does not reach into this realm, Attack and HP will be reduced by 50%.
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Ally Image Ally Description
Dunno.png Oxygen Vent - Occasional vents exists that will replenish oxygen in the underwater section.


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Monster Image Monster Description Monster Moves
13-4 Mob 4.png A.M.P.S Type - Abyssicola - A floating spherical robot containing some type of suspicious liquid.
  • Gas Emission: It will start to emit gas wherever it moves for a period of time.
  • Gas Leak: Upon being defeated, they will release their contents, spewing a cloud of pink gas which will freeze players.
13-4 Mob 5.png A.M.P.S Type - Archelon - A mechanical robot modeled after a sea turtle with some kind of jet propulsion system attached to its back.
  • Jet Ram: Propel itself forwards with its jet ramming into players in its path. It will leave behind a trail of noxious gas.
  • Rocket Stomp: Shoot itself diagonally upward with its jet boosters. It will have a shockwave when it land back on the ground.
13-4 Mob 6.png A.M.P.S Type - Kaempferi - A mechanical robot modeled after a crab with extremely long legs.
  • Claw Swipe: It will swipe downwards with its tow metal claws.
  • Gas Emission: It will emit gas beneath itself which deals damage to players.


  • Only its main body has a hitbox, along with its tall stature, many attacks will miss if used at ground level.


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Obstacles Image Obstacles Description
Dunno.png Water - A portion of the tunnel will be submerged underwater as you descend deeper into the facility, while submerged movements and attacks will be slowed down exponentially as well as jump height being increased significantly. While underwater an oxygen meter will appear above the player and once depleted will cause the character to drown.
Dunno.png Bounce Pad - Bounce pads will exist marked by a purple vent, jumping on them will propel you upwards.
Dunno.png Water Flow - In the final portions of the tunnel, water will flow freely transporting you down to the lower portions of the tunnel.
Dunno.png Retractable Floor - During your descent, the floor will open up sending you further down into the depths of the tunnel.


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Monster Image Boss Description Boss Moves
Dunno.png A.M.P.S Type - Gerstalker - The door at the end of the tunnel, it isn't just a door, but a fully automated security robot.
  • Move: While moving its legs are capable to dealing damage when they lift and land.
  • Gas Emission: It is capable to releasing a volatile pink gas which will cause its still living legs to continuously emit it for a period of time, leaving trails wherever it seps. The gas will damage nearby players.
  • Sweeping Laser: Fire an extremely powerful laser and sweep if from one side of the screen to the other. There are two variants of this attack, one which is angles itself upwards and one downwards, attacking the upper or lower half of the map respectively.
  • Homing Missiles: Its central body will open up revealing and arsenal of missiles which it will fire off and home onto any available player. One can dodge them with invincibility frames, mana break, or keeping a far distance so they can expire.


  • Its life bar is a cumulative total of all its legs and the main body.
    • All of the parts having separate hitboxes, making large aoe attacks more effective than strong but small attacks.
  • Every time one of its legs are destroyed, it will drop an Essence of Life.
  • The bosses main body is a physical object, so it will push players as it moves.


  • Story Quest Icon - Comet Crusader.png Chung: There are a lot of machines, but they are different from Nasods in Elrios.
Image Name Boss Character Stats
Complete Energy Conversion Device
Complete Energy Conversion Device
A.M.P.S Type - Gerstalker

Accessory (Ring):
+1% Attack/Magical Attack for each debuff you have (max 3%)

Date Changes
07/18/2019 08/14/2019
  • Abandoned Deep-Sea Tunnel added.
10/10/2019 -
  • CP Requirement increased from 400000 to 420000.
11/21/2019 -
  • CP Requirement decreased from 420000 to 320000.
  • Difficulty decreased.
03/12/2020 04/08/2020
  • Difficulty decreased.
06/18/2020 06/17/2020
  • ED drop rate increased.
Alternative Names
Server Name Translation
Korean Flag.png South Korea 폐쇄된 심해 터널 Closed Deep-Sea Tunnel
German Flag.png Germany Verlassener Tiefseetunnel Abandoned Deep-Sea Tunnel
Spanish Flag.png Spain Túnel Marino Abandonado Abandoned Deep-Sea Tunnel
French Flag.png France Tunnel des abysses abandonné Abandoned Deep-Sea Tunnel
Italian Flag.png Italy Tunnel subacqueo abbandonato Abandoned Deep-Sea Tunnel
Polish Flag.png Poland Opuszczony Tunel Głębi Morskiej Abandoned Deep-Sea Tunnel
Bresil Flag.png Brazil Túnel Submarino Abandonado Abandoned Deep-Sea Tunnel

  • Region 13~18
  • Region 1~6
  • Region 7~12
  • Laby
  • Noah
  • Other