Important

Account Linking Recommended

Gacha

Kikoru Shinomiya Pickup Gacha Now Available!

Event

[Updated] Mop-Up Operation Now Available!

Event

[Updated] Raid Battle: Kaiju No. 1 Now Available!

Update

[Updated] Data Update & Event Preview

Event

Training: Kaijumite—2x Rewards Campaign Now Available!

Event

Kaiju Rush Now Available!

Known Issue

[Updated] Regarding Currently Confirmed Issues

Gacha

Soshiro Hoshina Pickup Gacha Now Available!

Event

Special Event [The Weapon Within] Now Available!

Known Issue

[Updated] Regarding the Issue with Unipart R&D

Event

Large Conquest: Absolute Perimeter Now Available!

Event

Fierce Battle Area (Limited): Incremental Grandeur Now Available!

Gacha

[Limited] Wang Meixing Pickup Gacha Now Available!

Gacha

[Limited] Sagan Shinomiya Pickup Gacha Rerun Now Available!

Gacha

Reno Ichikawa Pickup Gacha Rerun Now Available!

Event

Main Story Ch. 7 Release & Celebration Event

News

Defense Force Pass Now Available!

News

Monthly Items Reset

Event

Fierce Battle Area (Permanent): Tachikawa New High Difficulty Stages!

Update

[Updated] Version 1.4.2 Update Now Live

Update

Version 1.4.1 Update Now Live

Update

Version 1.4.0 Update Now Live

Event

Expedition HARD Mode Added!

Event

New Training: Fungal-Type β Added!

News

Changes to Weekly Limit and Stamina for Identified Kaiju Neutralization

News

New Shop Arrival: Defense Force Support Special Pack!

Known Issue

[Updated] Regarding Issue with Fierce Battle Area

Event

New Training: Caudata-Type α Added!

News

[Updated] Version 1.2.2 Update Now Live

Event

New Training: Armored-Type α Added!

News

PC (Steam®) Version Now Available!

News

Version 1.2.0 Update Now Live

Important

Official Release & Pre-Registration Rewards

News

The KAIJU NO. 8 THE GAME Web Store

News

Release Celebration Items—Value Items Now On Sale!

Gacha

Kikoru Shinomiya Pickup Gacha Now Available!

Event

[Updated] Mop-Up Operation Now Available!

Event

[Updated] Raid Battle: Kaiju No. 1 Now Available!

Event

Training: Kaijumite—2x Rewards Campaign Now Available!

Event

Kaiju Rush Now Available!

Gacha

Soshiro Hoshina Pickup Gacha Now Available!

Event

Special Event [The Weapon Within] Now Available!

Event

Large Conquest: Absolute Perimeter Now Available!

Event

Fierce Battle Area (Limited): Incremental Grandeur Now Available!

Gacha

[Limited] Wang Meixing Pickup Gacha Now Available!

Gacha

[Limited] Sagan Shinomiya Pickup Gacha Rerun Now Available!

Gacha

Reno Ichikawa Pickup Gacha Rerun Now Available!

Event

Main Story Ch. 7 Release & Celebration Event

News

Defense Force Pass Now Available!

News

Monthly Items Reset

Event

Fierce Battle Area (Permanent): Tachikawa New High Difficulty Stages!

Event

Expedition HARD Mode Added!

Event

New Training: Fungal-Type β Added!

News

Changes to Weekly Limit and Stamina for Identified Kaiju Neutralization

News

New Shop Arrival: Defense Force Support Special Pack!

Event

New Training: Caudata-Type α Added!

News

[Updated] Version 1.2.2 Update Now Live

Event

New Training: Armored-Type α Added!

News

PC (Steam®) Version Now Available!

News

Version 1.2.0 Update Now Live

News

The KAIJU NO. 8 THE GAME Web Store

News

Release Celebration Items—Value Items Now On Sale!

Important

Account Linking Recommended

Update

[Updated] Data Update & Event Preview

Known Issue

[Updated] Regarding Currently Confirmed Issues

Known Issue

[Updated] Regarding the Issue with Unipart R&D

Update

[Updated] Version 1.4.2 Update Now Live

Update

Version 1.4.1 Update Now Live

Update

Version 1.4.0 Update Now Live

Known Issue

[Updated] Regarding Issue with Fierce Battle Area

Important

Official Release & Pre-Registration Rewards

2026-01-09T03:00:00Z

Special Event [The Weapon Within] Now Available!

Special Event

Thank you for playing KAIJU NO. 8 THE GAME.

The Special Event [The Weapon Within] is now available as of 2026-01-09T03:00:00Z.

In this Special Event, you can earn:

・A new Home background, also featured in the story

・Up to 1,500 Dimensional Crystals

・The event-limited ★4 weapon "Ax-Bison 91" (Ax)

...and other rewards!

Take part in the event from Home > Events > Special Event after clearing Main Story Chapter 0.

*Dimensional Crystals can be obtained from quest clear rewards, mission rewards, and from the event item Exchange Shop.

Availability Period

2026-01-09T03:00:00Z - 2026-02-01T02:59:59Z

*Reward claim and event item exchange will be available until 2026-02-08T02:59:59Z.

Event Overview

The Special Event offers the following content: Story, Quests, and Challenges. Clear quests to unlock the rest of the story.

■ Story

The story focuses on specific characters.

You must clear quests to progress through parts of the story.


Even if you are unable to reach the end of the story during the Special Event period, please rest assured that it will be available to view as a Character Story after the event ends.

You can access Character Stories from Home > Story > Characters.

Play the final episode of the event story before the event ends to obtain a Home background.

Once obtained, you can use this Home background even after the event period.

Please note that the method for obtaining this Home background will change after the event period.

■ Quests

Deploy for quests by consuming Stamina.

By clearing a quest, you can proceed to the next one.

Quests have Combat Objectives. If you clear all Combat Objectives, you will be able to use the skip function on subsequent attempts.

Clear quests to obtain Interlude Notes, which can be exchanged for items in the Shop.

■ Challenges

In Challenges, you can take on high-difficulty battles.

Stage effects will be active in Challenges. Be sure to make full use of them to secure yourself an advantage.

■ Missions

You can earn rewards by clearing various missions.

You can also earn the exchange item Interlude Notes from mission rewards, which can be exchanged for various items in the Shop.

Login Missions will also be available starting the day after the event begins.

Please note that Login Missions will not be displayed on the mission list on the first day of the event.

*Interlude Notes will be available for use until 2026-02-08T02:59:59Z and will be recalled when expired.

Special Event Release Celebration Login Bonus

Log in during the period to get up to 10 Pickup Gacha Tickets and 5 Stamina Jellies.

Availability Period

2026-01-09T19:00:00Z - 2026-02-07T18:59:59Z

Important

The date and time of the data update are subject to change. We appreciate your understanding.

Thank you for your continued support of KAIJU NO. 8 THE GAME.