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Abyssal Land Bases, otherwise known as Installations, are enemies representing land-based military fortifications and facilities. While categorized as various different ship classes within the game, they have numerous differences from ordinary ships that grant them unique defensive strengths and weaknesses against shipborne weapons.

General RulesEdit

  • Cannot be attacked by Torpedoes. Torpedo stat is considered as 0 while attacking Installations. Torpedo-based attacks will either not activate (In Night Battle) or cannot target Installations (In Torpedo Phase)
    • An exception to this occurs when the ship has no equipment equipped. [1]
  • Submarines will be able to attack installations during shelling phase if equipped with Special Type 2 Amphibious TankSpecial Type 2 Amphibious Tank 167 Card
    • Note that submarine can attack them during the night regardless of equipment.
  • Dive Bombers and Torpedo Bombers are able to attack Installations during the Opening Air Strike.
    • Torpedo Bombers, however have their torpedo stat treated as 0, and thus is only able to deal scratch damage.
  • Cannot be attacked by Carriers equipped with Dive Bombers during the shelling phase, unless equipped with the following bombers: [2]
  • Carrier are unable to perform cut-in attacks on installations in Daytime Shelling.
  • Equipping Anti-Installation equipment deals bonus damage against them.
  • Installations come in 3 different sub-classes, BB, BBV and CV.
    • BB-Type Installations use the normal shelling formula and continue to shell past Moderate Damage
    • BBV and CV-Type Installations use the carrier shelling formula and are disabled once past Moderate Damage.
  • Can be identified by their speed (None).
  • Special damage labels are shown when damaged:
Regular (ship) damage label Name in Japanese Land based damage label Name in Japanese
Slightly damaged (小破?) Confused (混乱?)
Moderately damaged (中破?) Damaged (損害?)
Heavily damaged (大破?) Broken (損壊?)
Sunken (撃沈?) Destroyed (破壊?)


Quick Guide Edit

Ships that can equip Tanks
Ship Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 Card Special Type 2 Amphibious Tank 167 Card Ship Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 Card Special Type 2 Amphibious Tank 167 Card
Destroyer (DD)
Asashio Kai Ni D Banner Yes Yes Arashio Kai Ni Banner Yes Yes
Kasumi Kai Ni Banner Yes Yes Ooshio Kai Ni Banner Yes Yes
Michishio Kai Ni Banner Yes Yes Arare Kai Ni Banner Yes Yes
Satsuki Kai Ni Banner Yes Yes Fumizuki Kai Ni Banner Yes Yes
Verniy Banner Yes Yes Umikaze Kai Ni Banner Yes Yes
Mutsuki Kai Ni Banner Yes No Kisaragi Kai Ni Banner Yes No
Kawakaze Kai Ni Banner Yes No Murasame Kai Ni Banner Yes No
Makigumo Kai Ni Banner Yes No
Kuroshio Kai Ni Banner No Yes Shiratsuyu Kai Ni Banner No Yes
Kazagumo Kai Ni Banner No Yes Asashimo Kai Ni Banner No Yes
Light Cruiser (CL)
Abukuma Kai Ni Banner Yes Yes Kinu Kai Ni Banner Yes Yes
Yura Kai Ni Banner Yes Yes Tama Kai Ni Banner Yes Yes
Tatsuta Kai Ni Banner Yes Yes
Battleship (BB)
Nagato Kai Ni Banner Yes Yes Mutsu Kai Ni Banner No Yes
Seaplane Tender (AV)
Chitose Banner Yes Yes Chiyoda Banner Yes Yes
Mizuho Banner Yes Yes Akitsushima Kai Banner Yes Yes
Commandant Teste Kai Banner Yes Yes Kamoi Kai Banner Yes Yes
Nisshin Banner Yes No Nisshin Kai Banner Yes Yes
Fleet Oiler (AO)
Hayasui Kai Banner Yes Yes Kamoi Kai Bo Banner Yes Yes
Amphibious Assault Ship (LHA)
Akitsu Maru Banner Yes Yes Akitsu Maru Kai Banner Yes Yes
Ship Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 Card Special Type 2 Amphibious Tank 167 Card Ship Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 Card Special Type 2 Amphibious Tank 167 Card

Damage BonusEdit

Damage against Installations is calculated as follows:

$ \text {Attack Power} = \operatorname{cap} \left ( ( ( (\hat{F} + I_{sub}) \cdot I_{pre} ) + I_{flat} ) \cdot M \right ) * I_{post} $

Where:

  • $ \hat{F} $is the ship's calculated shelling stat after equipment and improvement have been added (Refer to Combat/Damage_Calculation)
  • $ \operatorname{cap} $is the soft capping operation. (180 for Daytime shelling, 300 for Night Battle)
  • $ I_{pre} $is the final multiplier of all eligible anti-installation pre-cap multipliers.
  • $ I_{flat} $is the sum of all eligible flat pre-cap bonuses.
  • $ I_{sub} $is the submarine flat pre-cap bonus.
  • $ M $is the special attack modifier (e.g double attack) of any eligible attack.
  • $ I_{post} $is the final multiplier of all eligible post-cap multipliers.

Bonus TablesEdit

The following table is the known multipliers of anti-installation equipment versus various types of installations. With the exception of Supply Depot Princess, all multipliers listed are Pre-cap multipliers, unless otherwise specified.

Installation Type Soft-Skinned Isolated Island Princess Artillery Imp Harbor Summer Princess Supply Depot Princess
(Post Cap)
Number Equipped Single Multiple Single Multiple Single Multiple Single Multiple Single Multiple
GreenAmmoAnti-Aircraft ShellType 3 Shell 035 CardType 3 Shell Kai 317 Card 2.5 1.75 1.75
RedAmmoArmor Piercing ShellType 91 Armor Piercing Shell 036 CardType 1 Armor Piercing Shell 116 Card 1.85 1.3
Agat cWG42 (Wurfgerät 42)WG42 (Wurfgerät 42) 126 Card 1.3 1.82 1.4 2.1 1.6 2.72 1.4 1.68 1.25 1.625
Agat cAnti-Ground Rocket LauncherShipborne Model Type 4 20cm Anti-ground Rocket Launcher 348 CardType 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment) 349 Card 1.25 1.875 1.3 2.145 1.5 2.7 1.25 1.75 1.2 1.68
DepthChargeASW MortarType 2 12cm Mortar Kai 346 CardType 2 12cm Mortar Kai (Concentrated Deployment) 347 Card 1.2 1.56 1.2 1.68 1.3 1.95 1.1 1.265 1.15 1.38
LandingCraft Landing CraftDaihatsu Landing Craft 068 CardDaihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 CardToku Daihatsu Landing Craft 193 CardToku Daihatsu Landing Craft + 11th Tank Regiment 230 CardM4A1 DD 355 Card Type Multiplier 1.4 1.8 1.8 1.7 1.7
Screw Landing Craft Improvement Multiplier 1 + (Average ★ /50) [Max 1.2x]
LandingCraft Toku Daihatsu Landing CraftToku Daihatsu Landing Craft 193 Card 1.15 1.15 1.15 1.2 1.2
LandingCraft Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 Card 1.5 1.95 1.2 1.68 1.5 2.1 1.6 2.4 1.3 2.08
LandingCraft Toku Daihatsu Landing Craft + 11th Tank RegimentToku Daihatsu Landing Craft + 11th Tank Regiment 230 Card 1.8 1.8 1.8 1.8
LandingCraft M4A1 DDM4A1 DD 355 Card ? ? 1.54 2.8 1.2
Special Amphibious Tank Icon Special Type 2 Amphibious TankSpecial Type 2 Amphibious Tank 167 Card 1.5 1.8 2.4 3.24 2.4 3.24 2.8 4.2 1.7 2.55
Screw Amphibious Tank Improvement Multiplier 1 + (Average ★ /30) [Max 1.33x]
RedPlane Carrier-based Dive Bomber 1.4 1.5 1.3
Seaplane Seaplane Fighter Icon
Seaplane Bomber/Fighter
1.2 1.5 1.3
Destroyer / Light Cruiser (DD/CL) 1.4
Airstrike-Only Multipliers
Land-based Attack Aircraft Icon Land Based Attack Aircraft 1.18 1.6 2.1
Land-based Attack Aircraft Icon Seaplane RedPlane Bombers (Post cap) 1.7 1.55

To Note:

  • Each row is a separate multiplier and is multiplicative with every other row.
  • Multiple is defined as 2 or more.
  • Standard AP-Shell post-cap multipliers apply on installations as per normal.
  • Land-Based Attack Aircraft benefit from both Airstrike multipliers.
  • Seaplane Bomber/Fighter bonus works even if the slot size is 0.
  • Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force)Daihatsu Landing Craft (Type 89 Medium Tank & Landing Force) 166 Card has an additional further improvement bonus against Supply Depot Princess, where the improvement multiplier is multiplied again.
  • Supply Depot Princess is considered as Soft-skinned, and all Soft-skin pre-cap multipliers also apply to her.


The following listed are the Flat Damage bonuses:

Amount Equipped 1 2 3 4
Agat cWG42 (Wurfgerät 42)WG42 (Wurfgerät 42) 126 Card 75 110 140 160
Agat cShipborne Model Type 4 20cm Anti-ground Rocket LauncherShipborne Model Type 4 20cm Anti-ground Rocket Launcher 348 Card 55 115 160 190
Agat cType 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment)Type 4 20cm Anti-ground Rocket Launcher (Concentrated Deployment) 349 Card 80 170 ? ?
DepthChargeType 2 12cm Mortar KaiType 2 12cm Mortar Kai 346 Card 30 55 75 90
DepthChargeType 2 12cm Mortar Kai (Concentrated Deployment)Type 2 12cm Mortar Kai (Concentrated Deployment) 347 Card 60 110 150 ?
LandingCraft Toku Daihatsu Landing Craft + 11th Tank RegimentToku Daihatsu Landing Craft + 11th Tank Regiment 230 Card 25
LandingCraft M4A1 DDM4A1 DD 355 Card 25
Ship Type Bonus
Submarine (SS/SSV) 30
Airstrike-only Bonus
Land-based Attack Aircraft Icon Seaplane RedPlane Bombers
(Supply Depot Princess Only)
100 (Post-cap)

To Note:

  • With the exception of the bomber bonus, Flat damage bonuses are pre-cap

OthersEdit

These are Installations that (might) behave differently in regards to damage, and haven't been categorized in the above categories.

Central PrincessEdit

  • Takes increased damage from dive bombers and seaplane bombers during opening stages.

Central Princess Damaged FormEdit

  • Takes increased damage from WG42 and Type 2 Tanks. However, using both of them together cancels Tank bonus.[4]

Anchorage Water Demon Vacation ModeEdit

  • Unlike her normal version, is considered a surface ship, and thus torpedo stat and relevant attacks are able to harm her.
  • Takes increased damage from anti-installation equipment, in particular from M4A1 DDM4A1 DD 355 Card and ships with multiple Dive Bombers equipped.
    • The damage multipliers also apply to torpedo attacks that are aimed at her as well.

Ship TypeEdit

Despite those enemies are installations, they do have the "ship type" parameter which influence their behavior in battle.

Currently, there are Aviation Battleship, Battleship, and Carrier Installations.

Aviation Battleship type: Most Installations belong to this type, firepower calculation same as carriers, shelling attack animation in both day battle and night battle [in browser game version], cannot attack in day battle if heavily damaged.
Battleship type: Artillery Imp and Central Princess, firepower calculation same as battleships, shelling attack animation in both day battle and night battle, can attack in day battle even if they are heavily damaged.
Carrier type: Lycoris Princess, firepower calculation same as carriers, carrier attack animation in day battle and shelling attack animation in night battle, cannot attack in day battle if heavily damaged. Killing them count toward carrier kill quest.

List of Installation Type EnemiesEdit


List of Installation Type Enemies Sorted by Their Description and AppearanceEdit

Name "Battle card" Notes
Airfield Princess#Basic Airfield Princess Banner Fall 2013 Event E-4 boss.
Airfield Princess#Basic II Airfield Princess II BannerHell plane 2 Summer 2015 Event E-4 boss. Appears in the same event but under E-3X.
Airfield Princess#Basic III Airfield Princess II BannerHell plane 2Abyssal Revenge Torpedo Bomber Kai 558 Equipment Summer 2015 Event E-4 boss. Appears in the same event but under E-3X.
Airfield Princess#Basic IV Airfield Princess II BannerAbyssal Hell Dive Bomber Kai 557 EquipmentAbyssal Revenge Torpedo Bomber Kai 558 Equipment Summer 2015 Event E-4 boss. Appears in the same event but under E-3X.
Airfield Princess#Basic V Airfield Princess BannerAbyssal Liberation Land-based Dive Bomber 561 Equipment Winter 2016 Event "aerial node" boss.
Airfield Princess#Basic VI Airfield Princess BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber 561 Equipment Winter 2016 Event "aerial node" boss.
Airfield Princess#Basic VII Airfield Princess BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber Ace 562 Equipment Winter 2016 Event "aerial node" boss.

Name "Battle card" Notes
Central Princess#Basic Central Princess Banner Spring 2016 Event E-6 Boss for easy difficulty.
Central Princess#Basic II Central Princess Banner Spring 2016 Event E-6 Boss for normal/medium difficulty mainly.
Central Princess#Basic III Central Princess Banner Spring 2016 Event E-6 Boss for hard difficulty mainly.
Central Princess#Damaged Central Princess - Damaged Banner Spring 2016 Event E-7 Boss for easy difficulty.
Central Princess#Damaged II Central Princess - Damaged Banner Spring 2016 Event E-7 Boss for normal/medium difficulty mainly.
Central Princess#Damaged III Central Princess - Damaged Banner Spring 2016 Event E-7 Boss for hard difficulty mainly.

Name "Battle card" Notes
Harbour Princess#Basic Harbour Princess Banner Appears in numerous event maps, see respective page for more information.
Harbour Princess#Basic II Harbour Princess II Banner Final form. Appears in numerous event maps, see respective page for more information.

Name "Battle card" Notes
Harbour Summer Princess#Basic Harbour Summer Princess Banner Summer 2016 Event E-3 Boss for easy difficulty.
Harbour Summer Princess#Basic II Harbour Summer Princess Banner Summer 2016 Event E-3 Boss for medium difficulty.
Harbour Summer Princess#Basic III Harbour Summer Princess Banner Summer 2016 Event E-3 Boss for hard difficulty.
Harbour Summer Princess#Damaged Harbour Summer Princess - Damaged Banner Summer 2016 Event E-3 Boss for easy difficulty. Final form
Harbour Summer Princess#Damaged II Harbour Summer Princess - Damaged Banner Summer 2016 Event E-3 Boss for medium difficulty. Final form
Harbour Summer Princess#Damaged III Harbour Summer Princess - Damaged Banner Summer 2016 Event E-3 Boss for hard difficulty. Final form

Name "Battle card" Notes
Isolated Island Princess#Basic Isolated Island Princess BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber 561 Equipment World 6: 中部海域 6-4. Standard Carrier Installation
Isolated Island Princess#Basic II Isolated Island Princess BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentHell plane 1 World 6: 中部海域 6-4. Standard Carrier Installation
Isolated Island Princess#Basic III Isolated Island Princess Banner World 6: 中部海域 6-4. Standard Carrier Installation
Isolated Island Princess#Basic IV Isolated Island Princess BannerHell plane 1 World 6: 中部海域 6-4. Aviation Battleship Installation
Isolated Island Princess#Basic V Isolated Island Princess Banner World 6: 中部海域 6-4. Battleship Installation

Name "Battle card" Notes
Lycoris Princess#Basic Lycoris Princess Banner Spring 2016 Event E-5 Boss for easy difficulty. Standard Carrier Installation
Lycoris Princess#Basic II Lycoris Princess Banner Spring 2016 Event E-5 Boss for normal/medium difficulty. Standard Carrier Installation
Lycoris Princess#Basic III Lycoris Princess Banner Spring 2016 Event E-5 Boss for hard difficulty. Standard Carrier Installation
Lycoris Princess#Basic IV Lycoris Princess Banner Spring 2016 Event E-5 Air Raid Node Standard Carrier Installation
Lycoris Princess#Basic V Lycoris Princess Banner Spring 2016 Event E-5 Air Raid Node Standard Carrier Installation

Name "Battle card" Notes
Midway Princess#Basic Midway Princess Banner Summer 2014 Event E-3 Pre-boss node . Summer 2014 Event E-4 boss.
Midway Princess#Basic II Midway Princess II Banner Summer 2014 Event E-3 Pre-boss node . Summer 2014 Event E-4 boss. Final form

Name "Battle card" Notes
Northernmost Landing Princess#Basic Northernmost Landing Princess Banner Spring 2017 Event E-4 boss for easy difficulty.
Northernmost Landing Princess#Basic II Northernmost Landing Princess Banner Spring 2017 Event E-4 boss for medium difficulty.
Northernmost Landing Princess#Basic III Northernmost Landing Princess Banner Spring 2017 Event E-4 boss for hard difficulty.

Name "Battle card" Notes
Supply Depot Princess#Basic Supply Depot Princess Banner Winter 2016 Event E-2 Boss for easy difficulty.
Supply Depot Princess#Damaged Supply Depot Princess - Damaged Banner Winter 2016 Event E-2 Boss for easy difficulty. Final form
Supply Depot Princess#Basic II Supply Depot Princess BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber 561 Equipment Winter 2016 Event E-2 Boss for normal/medium difficulty.
Supply Depot Princess#Damaged II Supply Depot Princess - Damaged BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber 561 Equipment Winter 2016 Event E-2 Boss for normal/medium difficulty. Final form
Supply Depot Princess#Basic III Supply Depot Princess BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber Ace 562 Equipment Winter 2016 Event E-2 Boss for hard difficulty.
Supply Depot Princess#Damaged III Supply Depot Princess - Damaged BannerAbyssal Liberation Land-based Dive Bomber Ace 562 EquipmentAbyssal Liberation Land-based Dive Bomber Ace 562 Equipment Winter 2016 Event E-2 Boss for hard difficulty. Final form

Name "Battle card" Notes
Supply Depot Princess Vacation Mode#Basic Supply Depot Princess Vacation Mode Banner Early Fall 2018 Event E-2 Phase 2 Boss for easy/casual difficulty.
Supply Depot Princess Vacation Mode#Basic II Supply Depot Princess Vacation Mode Banner Early Fall 2018 Event E-2 Phase 2 Boss for medium difficulty.
Supply Depot Princess Vacation Mode#Basic III Supply Depot Princess Vacation Mode Banner Early Fall 2018 Event E-2 Phase 2 Boss for hard difficulty.
Supply Depot Princess Vacation Mode#Damaged Supply Depot Princess Vacation Mode - Damaged Banner Early Fall 2018 Event E-2 Phase 2 Boss for easy/casual difficulty.Final form
Supply Depot Princess Vacation Mode#Damaged II Supply Depot Princess Vacation Mode - Damaged Banner Early Fall 2018 Event E-2 Phase 2 Boss for medium difficulty.Final form
Supply Depot Princess Vacation Mode#Damaged III Supply Depot Princess Vacation Mode - Damaged Banner Early Fall 2018 Event E-2 Phase 2 Boss for hard difficulty.Final form

Name "Battle card" Notes
Anchorage Water Demon#Basic Anchorage Water Demon Banner Spring 2015 Event E-5 Boss. Appears also in Fall 2015 Event E-4 node M.
Anchorage Water Demon#Basic III Anchorage Water Demon III Banner Spring 2015 Event E-5 Boss "final form". Appears also in Fall 2015 Event E-4 node M.
Anchorage Water Demon#Basic II Anchorage Water Demon Banner Spring 2015 Event E-5 Boss "strong form".
Anchorage Water Demon#Basic IV Anchorage Water Demon III Banner Spring 2015 Event E-5 Boss "final and strong form".

Name "Battle card" Notes
Harbour Water Demon#Basic Harbour Water Demon Banner Spring 2015 Event E-4 boss.
Harbour Water Demon#Basic III Harbour Water Demon Banner Spring 2015 Event E-4 boss in final form.
Harbour Water Demon#Basic II Harbour Water Demon Banner Spring 2015 Event E-4 boss in strong form.
Harbour Water Demon#Basic IV Harbour Water Demon Banner Spring 2015 Event E-4 boss in final and strong form.

Name "Battle card" Notes
Northern Little Sister#Basic Northern Little Sister Banner Spring 2019 Event E-3 Phase 2 Boss for hard difficulty.
Northern Little Sister#Basic II Northern Little Sister Banner Spring 2019 Event E-3 Phase 2 Boss for medium difficulty.
Northern Little Sister#Basic III Northern Little Sister Banner Spring 2019 Event E-3 Phase 2 Boss for hard difficulty.
Northern Little Sister#Damaged Northern Little Sister - Damaged Banner Spring 2019 Event E-3 Phase 2 Boss for easy/casual difficulty.Final form
Northern Little Sister#Damaged II Northern Little Sister - Damaged Banner Spring 2019 Event E-3 Phase 2 Boss for medium difficulty.Final form
Northern Little Sister#Damaged III Northern Little Sister - Damaged Banner Spring 2019 Event E-3 Phase 2 Boss for hard difficulty.Final form

ReferencesEdit

  1. https://twitter.com/noratako5/status/707937418020651008
  2. https://twitter.com/KanColle_STAFF/status/1110889611591507971

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