Introduction

This article aims to provide a rough guide to help you decide on what to spend your screws on. Because of the way most improvement bonuses are square rooted, the first upgrade provides you with the largest gain. Therefore it is critical to get important equipment to ★+1 before working on others.

Please refer to Akashi-List or Improvement for more details on the process.

The Breakpoint Myth

Breakpoints refer to points where upgrade bonuses reach whole numbers. These points are stressed because of the way the game rounds down the results of most formulas. The misconception is that a 1.99 bonus is just as good as a 1.00 bonus because of rounding. While there is a slight grain of truth to the myth, things get a little complex in practice. Due to how many multipliers and other bonuses are involved, trying to hit equipment upgrade breakpoints doesn't affect very much in the grand scheme of things.

The most important thing to do is to upgrade your equipment to certain critical points:

★+1 - Provides the biggest power increase. Only applies to equipment with square rooted bonus curves.
★+6 - The point when failures start to kick in and costs take a large jump.
★MAX - The final step to maximise upgrade bonuses.

Upgrade Priority

Very High

Equipment Type		Name
Main Gun	Small	10cm Twin High-angle Mount + Anti-Aircraft Fire Director
	Medium	20.3cm(no.3) Twin Gun Mount
	Large	Prototype 35.6cm Triple Gun Mount · Prototype 41cm Triple Gun Mount
Anti-Air Gun		12cm 30-tube Rocket Launcher^[1]
Torpedo		61cm Quad (Oxygen) Torpedo Mount · 61cm Quint (Oxygen) Torpedo Mount · Prototype 61cm Sextuple (Oxygen) Torpedo Mount
Carrier Plane	Fighter	Zero Fighter Type 52 Model A (Iwamoto Squadron)
Seaplane	Recon	Type 0 Recon Seaplane^[2]
SONAR		Type 4 SONAR
Shell		Type 91 Armor-Piercing (AP) Shell · Type 1 Armor-Piercing (AP) Shell
Landing Craft		Type 2 Ka-Mi Tank
Misc Equipment		Searchlight

↑ To upgrade into 12cm 30 Tube Rocket Launcher Kai 2.
↑ To upgrade into Type 2 Seaplane Fighter Kai

High

Equipment Type		Name
Main Gun	Small	12.7cm Twin Mount Type-C Kai 2 · 12.7cm Twin Mount Type-B Kai 4 (Wartime Modifications) + Anti-Aircraft Fire Director
	Medium	8inch Triple Gun Mount Mk.9 · 8inch Triple Gun Mount Mk.9 mod.2
	Large	46cm Triple Gun Mount^[1] · 16in Triple Gun Mount Mk.7 · 41cm Triple Gun Mount Kai Ni · 46cm Triple Gun Mount Kai
Torpedo		61cm Triple (Oxygen) Torpedo Mount Late Model · 61cm Quad (Oxygen) Torpedo Mount Late Model
Carrier Plane	Fighter	Zero Fighter Type 52 Model C (601 Air Group)^[2] · F4F-3^[3] · F4F-4^[3] · F6F-3^[3] · F6F-5^[3]
Carrier Plane	Dive Bomber	Zero Fighter Type 62 (Fighter-bomber/Iwai Squadron)
Seaplane	Recon	Type 98 Recon Seaplane (Night Scout)
Seaplane	Fighter	Type 2 Seaplane Fighter Kai · Kyoufuu Kai
Other Aircraft		Type 1 Fighter Hayabusa Model III A
Landing Craft		Daihatsu-class Landing Craft (Type 89 Medium Tanks & Marines)
Misc Equipment		Type 96 150cm Searchlight

↑ To upgrade to 46cm Triple Gun Mount Kai.
↑ For conversion into Reppuu (601 Air Group).
↑ ^3.0 ^3.1 ^3.2 ^3.3 For night fighter quest chain.

Medium

Equipment Type		Name
Main Gun	Small	·
	Medium
	large
Anti-Air Gun
Torpedo
Carrier Plane	Fighter
	Torpedo Bomber
	Dive Bomber
Seaplane	Recon
	Bomber
	Fighter
Other Aircraft
SONAR
Depth Charge
Shell
Landing Craft
Misc Equipment

Low

Equipment Type		Name
Main Gun	Small	·
	Medium
	large
Anti-Air Gun
Torpedo
Carrier Plane	Fighter
	Torpedo Bomber
	Dive Bomber
Seaplane	Recon
	Bomber
	Fighter
Other Aircraft
SONAR
Depth Charge
Shell
Landing Craft
Misc Equipment

Very Low

Equipment Type		Name
Main Gun	Small	·
	Medium
	large
Anti-Air Gun
Torpedo
Carrier Plane	Fighter
	Torpedo Bomber
	Dive Bomber
Seaplane	Recon
	Bomber
	Fighter
Other Aircraft
SONAR
Depth Charge
Shell
Landing Craft
Misc Equipment

Help:Akashi Upgrades

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