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Latest Maintenance Updates and Patch Notes (February 2026)

Latest Maintenance Updates and Patch Notes (February 2026)

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Chaos Zero Nightmare | Latest Maintenance Updates and Patch Notes (February 2026) | CZN - GameWith

Maintenance patch notices in Chaos Zero Nightmare. See all updates, maintenance schedule today, server status, patch notes, server maintenance end time, error and bug fixes in CZN.

Table of Contents

Patch Updates

February 4 Update Information

Update TimeFebruary 4, 2026 01:00 – 08:00 UTC
*The event has now ended
Update Size1.77GB

Update Information Summary

    • "Nine" and "Alcea" Pickup Rescue
    • New Event is now live
    • Galactic Disaster Season 2 Seed of Karmic Fire
    • Seasonal Chaos Burning Life
    • Nebula Distortion
    • The Great Rift
    • Galactic Medals
    • Save Data Storage Rule Adjustments
    • New Item [Flash of Potential] added
    • Zero Upgrade System revamp
    • Mythic Grade Codex adjustment
    • Zero System - [Archive] unlocked
    • Zero Matrix rewards reset
    • ID Card editing feature added
    • Tressa and Cassius reworked
    • Balance adjustments
    • Ark City new nodes and items added
    • Improvements / Bug fixes

Nine and Alcea

Nine Rescue Rate Up

Rate Up Period02/04/2026 – 02/25/2026

Nine, the first Vanguard character to be implemented after release, is now available in Combatant Rescue. Along with her, Amir and Rei are also featured in this pickup.

Rescue Banner GuideNine Guide

New Partner Alcea Has Arrived

Alcea Rescue Rate Up

Rate Up Period02/04/2026 – 02/25/2026

The new Partner, Alcea, has also been implemented. She has optimal performance for Nine, activating her effects when the assigned Combatant's Cards are Exhausted.

Alcea Guide

New Events Are Here

9th Street Mercenary Office

9th Street Mercenary Office

Schedule02/04/2026 – 02/25/2026 before the maintenance
[First Assignment]
02/04/2026 – 02/24/2026 17:59 (UTC)
[Second Assignment]
02/05/2026 18:00 – 02/24/2026 17:59 (UTC)
[Third Assignment]
02/07/2026 18:00 – 02/24/2026 17:59 (UTC)

On the event page, which consists of Training Missions and Battle Missions, complete the Assignments received by Nine together.While progressing through the main missions on the event page, you can use Nine’s trial Save Data.

▼Limited-Time Rewards

MissionReward
Clear INTROCrystals x50
Advanced Vanguard Manual x2
Clear the mid plot node of the First AssignmentCrystals x50
Advanced Vanguard Certificate x2
Clear the final plot node of the First AssignmentCrystals x50
Advanced Order Growth Stone x2
Defeat the mission objective of the First AssignmentCrystals x50
Advanced Order Growth Stone x2
Clear all Missions of the First AssignmentPrism Lens x2
Traces of Memory x100
MissionReward
Clear the first plot node of the Second AssignmentCrystals x50
Advanced Vanguard Manual x2
Clear the mid plot node of the Second AssignmentCrystals x50
Advanced Vanguard Certificate x2
Clear the final plot node of the Second AssignmentCrystals x50
Advanced Order Growth Stone x2
Defeat the mission objective of the Second AssignmentCrystals x50
Advanced Order Growth Stone x2
Clear all Missions of the Second AssignmentPrism Lens x2
Traces of Memory x100
MissionReward
Clear the first plot node of the Third AssignmentCrystals x50
Advanced Vanguard Manual x2
Clear the mid plot node of the Third AssignmentCrystals x50
Advanced Vanguard Certificate x2
Clear the final plot node of the Third AssignmentCrystals x50
Advanced Order Growth Stone x2
Defeat the mission objective of the Third AssignmentCrystals x50
Advanced Order Growth Stone x2
Clear all Nodes of the Third AssignmentPrism Lens x2
Traces of Memory x100
Complete all AssignmentsMultidimensional Alignment Material x1

Virtual Tactical Simulation Event - Nine

Period02/04/2026 – 02/25/2026
Nine: RewardsCrystals x20
Advanced Battle Memory x3
Intermediate Vanguard Manual x3
Rei: RewardsAdvanced Battle Memory x3
Basic Controller Manual x4
Unit x10,000
Amir: RewardsAdvanced Battle Memory x3
Basic Vanguard Manual x4
Unit x10,000

During the new Combatant [Nine] pickup period, you can experience Combatants Nine, Rei, and Amir through the Virtual Tactical Simulation Event.

Bonds of Time Login Event

Bonds of Time Image

Period02/04/2026 – 03/18/2026 18:00 (UTC)
RewardsSignal Amplification Anchor x10
Rescue Anchor x10
Unit x300,000
Sweet Choconilla x9
Tear of God x3
Universal Tactical Certificate x90
Universal Support Certificate x75
Potential Disk x60
Prism Lens x10

To commemorate Galactic Disaster Season 2, a Login Event is being held where you can receive daily rewards. You can get many items by logging in during the period, so don't forget to log in.

Special Exploration Reward - Burning Life

Event Period02/04/2026 after the maintenance – 04/08/2026 before the maintenance

An Event is underway where you will receive rewards for reaching new Burning Life Chaos Exploration levels.

▼Rewards

[Into The Depths of Chaos]

Event Period02/04/2026 after maintenance – 02/17/2026 18:00 (UTC)

During the event period, you can clear various missions to earn a Chaos Selection Box as a reward. When using the Chaos Selection Box, you can choose to receive either a Chaos Orb or a Chaos Crystal.

▼Missions and Rewards

New Protos Rescue Support

Event Period02/04/2026 after the maintenance – 02/25/2026 before the maintenance (UTC)
RewardSignal Amplification Anchor x10

All new Protos who create an account during the event period will receive a reward via mail.

Upcoming Events

[Sweet Rewards After Missions]

Event Period02/10/2026 18:00 (UTC) – 02/25/2026 before the maintenance

The [Sweet Reward After a Mission] event, where you can earn rewards based on your total Aether consumption, is now live.

▼Rewards

Guardian of the Ark

Event Period02/17/2026 18:00 – 03/03/2026 18:00 (UTC)
RewardCrystals x480
(if all are obtained)

The [Guardian of the Ark] event is here, where you can earn rewards based on the number of Policies you've enacted. Policies can be advanced from Ark City.

▼Rewards

Ark City Guide

Galactic Disaster Season 2: Seed of Karmic Fire

Event Period02/04/2026 after the maintenance – 04/08/2026 before the maintenance
Unlock ConditionsCaptain Level 35

CZN's second large-scale event, Seed of Karmic Fire, is now live. The event will last for 9 weeks, with content updates every 3 weeks.

Galaxy DisasterSeason 2 Story

Chapter 1
Warriors of the Arena
[Open Period]
02/04/2026 after the maintenance
[Unlock Conditions]
Reach Captain Level 35
Chapter 2
Desert Kingdom Ruins
[Open Period]
02/25/2026 after the maintenance
[Unlock Conditions]
Clear Chapter 1 Episode 10 “Standoff”
Chapter 3
Heart, Promise
[Open Period]
After maintenance on Mar 17 (Tue)
[Unlock Conditions]
Clear Chapter 2 Episode 10 “Divine Beast”

The Galactic Disaster Season 2 Mission [Seed of Karmic Fire] is now available. Each mission will be added to the [Mission] section after the Galactic Disaster season ends.

Seasonal Chaos Burning Life

Unlock ConditionsClear Chapter 1 Episode 10 “Standoff”

The Seasonal Chaos [Burning Life] is now available. By playing Burning Life, you can obtain season-exclusive Save Data.

Burning Life Guide

How to Progress

  • You can achieve rewards based on your Weekly Progress Score when clearing Chaos.
  • Rewards can be claimed from [Achievements] based on the Weekly Progress Score achieved.
  • Progress is reset every week, and rewards can be earned repeatedly until the end of the Galactic Disaster season.
  • Burning Life will be integrated into the [Zero System] after the Galactic Disaster season ends.
  • The Exploration Archive from Chaos 「Burning Life」 during the Galactic Disaster season will remain available even after the season concludes.

Support Function Distortion Adaptation Added

Starting this season, the Distortion Adaptation system feature will be implemented exclusively for the Event Chaos. When Distortion Adaptation is active, your level and Potential will be raised to a certain level, and Memory Fragments and optimal Partners will be automatically equipped.

Season Gimmicks Exist

Season GimmickOverview
Arena Equipment
Activates its effect when certain conditions are met
Some Arena equipment create special cards called Arena cards
RefinementAllows you to add options to equipment in Seasonal Chaos.
Once refined, the option effects will remain even if you change equipment.
God's Hammer
Becomes usable after defeating the boss in the center of the Seasonal Chaos.
The God's Hammer can be used on refined equipment to add one random equipment effect from all effects available within the Chaos.

Nebula Distortion Now Open

Unlock ConditionsClear the new Chaos [Burning Life]

Nebula Distortion also appears this season. By adding conditions and strengthening enemies, you can get more luxurious rewards upon clearing.

3 Bosses Appear

Elemental Spirit[Event Period]
02/04/2026 after the maintenance – 04/08/2026 before the maintenance
Viadeus[Event Period]
02/18/2026 02:00 (UTC) – 04/08/2026 before the maintenance
Plague Lord
[Event Period]
03/04/2026 02:00 (UTC) – 04/08/2026 before the maintenance

Nebula Distortion Guide

The Great Rift Score Attack Now Open

First Half[Event Period]
02/25/2026 – 03/18/2026
Second Half[Event Period]
03/18/2026 – 04/08/2026

The Great Rift Score Attack is also being held, featuring very generous rewards. Create your own unique deck and aim for the highest score!

The Great Rift Guide

Supply Store Shop Image

Supply Store Shop Image

Primary Supply[Event Period]
02/04/2026 – 04/07/2026 18:00 (UTC)
Secondary Supply[Event Period]
02/25/2026 – 04/07/2026 18:00 (UTC)
Tertiary Supply[Event Period]
03/18/2026 – 04/07/2026 18:00 (UTC)

Items obtained in Chaos can be exchanged for rewards at the Supply Shop. Continuing from last time, in addition to being able to obtain the Limit Break material Omega Code in the Secondary Supply, an item that allows for a Rehirameki of Save Data will also be implemented starting this season.

▼Primary Supply

Galactic Medals

Galactic Medals Image

The new Galactic Medals feature has been added. With Galaxy Medal, you can check statistics related to content held during the season and display the medals you receive for achieving special objectives.

New Basin of Hyperspace Season Starts

Event Period02/04/2026 – 02/25/2026
Support BuffOn card Exhaust, increase Defense-Based Damage of Attack Cards by 30% (1 time per turn, max 2)

A new season of the Basin of Hyperspace [Dimensional Twilight] has started. There will be a total of 48 battles, including the first and second halves, from Basin 1 to Basin 10.

Basin of Hyperspace Guide

Save Data Storage Rule Adjustments

The Save Data storage rules will be improved to be more intuitive. The previous scoring rules based on the Save Data storage process will be removed, and points will instead be calculated based on the final saved results.

New Rules

  1. Faint Memories calculate additional elements based on the default Save Data, which consists of 8 cards in total: the Combatant’s uniquely obtainable Starting Cards and Epiphany Cards.
  2. Starting Cards and Epiphany Cards, and the Epiphanies applied to each card are not calculated as points.
  3. Neutral Cards are calculated as 20 points regardless of whether an Epiphany has been applied.
  4. Monster Cards are calculated as 20, 50, and 80 points for Normal, Rare, and Legendary grades respectively, regardless of whether an Epiphany has been applied. (Along with this change, existing Monster cards will be reclassified as Normal, Rare, or Legendary.)
  5. Divine Epiphanies count for 20 points. This includes Divine Epiphanies applied to both Starting and Epiphany Cards.
  6. For Card Duplication, up to 2 Duplicated cards will not count toward the calculation, but every Duplicate after that will count for 40 points.
  7. When a Duplicated card is Transformed into another card or removed, it will no longer be calculated as a duplicate.
  8. Within a single Save Data, a maximum of 4 duplicates can exist.
  9. Removing cards other than Starting Cards does not grant points.
  10. Each removed Starting Card is valued at 20 points.
  11. Cards changed into other cards through transformation or similar effects are also treated as removal, and removing duplicated cards does not grant points.
  12. A maximum of 5 removals is allowed per Save Data. If this limit is exceeded, the oldest removal records will be stored first.
  13. Forbidden Cards are worth 20 points and are saved before other Memories.
  14. Effects added through Refinement or God’s Hammer will be calculated at 10 points, and are saved before other Memories.

New Item [Flash of Potential]

The new item Flash of Potential was added after the maintenance on February 4.

Flash of Potential Features

  • The item can be used via the newly added [Re-manifestation] button in the Save Data UI.
  • Select one card that can be assigned a unique Epiphany, and change it to one of the unique Epiphanies available for that card.
  • The item will not be consumed by simply viewing eligible cards; it will only be consumed when an Epiphany is finally selected and applied.
  • The item can also be used on cards that do not currently have an Epiphany applied.
  • When used on a card with Divine Epiphany applied, the Divine Epiphany will be retained only if the same Divine Epiphany can be applied based on the card’s type or cost. If the Divine Epiphany cannot be applied, it will be removed.
  • The item cannot be used on default Save Data or on Save Data that does not contain any cards eligible for unique Epiphany application.
  • It can be purchased by consuming “Radiant Life” in the first Supply Shop of Galactic Disaster [Seed of Karmic Fire].

Zero Upgrade System Revamp

Moving away from the traditional upgrade method, a new [authority] system has been introduced, which presents goals for each stage of Growth. This reduces the Fatigue associated with Growth and alleviates the Stress caused by randomness during Exploration, allowing for more strategic play.

Mythic Grade Codex Adjustments

A special [Unique Option] system, which appears only in Mythic Grade Codices, will be introduced.

How to Obtain Unique Options

DifficultyNumber of Penalties
Appearance Rate
Uncommon
10%
Rare20%
Legendary30%
Mythic440%

When acquiring a [Mythic Grade] difficulty Codex in the Zero System, there is a certain probability that a special "@@@固有オプション@@@" will be added.

Unique Options: [Divine Intervention]

Unique Option: Divine Intervention Image

The Divine Intervention option has been added to Mythic Grade Codices, where you can encounter absolute beings and experience powerful authority.

Trial Penalty and Divine Fate

ListTrial Penalty
Kyrken’s OracleAt the end of the turn, if AP is remaining, increase Stress of allies by 2
Diallos’s GloryIncrease Damage Amount taken by allies by 30%
Sekred’s BreathChange Hit Count of all Attack Cards to 1
Nihilum’s GazeWhen 4 Attack Cards are used, end turn.
ListDivine Fate
Kyrken’s OracleSWhen using a card with Cost 2 or higher, gain 2 AP and Draw 1 card.
Diallos’s GloryShield gain is increased by 200%. At the end of the turn, Retain Shield, and inflict Fixed Damage to all enemies equal to Shield owned.
Sekred’s BreathIncrease Damage Amount by 200% for each Hit decreased on an Attack Card.
Nihilum’s GazeTriple the Hit Count of Attack Cards.

Overview of Unique Options: [Divine Intervention]

  • [Divine Encounter]:In Codices with the Divine Intervention option applied, you will enter an area where you directly confront a god during Chaos exploration.
  • [Trial]:Powerful penalties imposed by Divine Intervention are applied, significantly increasing the overall Codex difficulty.
  • [Divine Fate]:Through powerful Divine Fate abilities that allow you to face the imposed trials and strengthened enemies, a special combat experience different from before is provided.
  • [Special Reward] Upon clearing a Codex with the Divine Intervention option applied, you can obtain clues to the gods’ hidden stories. In addition, upon completing exploration, you can receive large amounts of Chaos Orbs and Chaos Crystals as rewards.

Other Unique Option

Unique Option: Seed of Karmic Fire

The [Arena] effect that appears in Galactic Disaster Season 2 Chaos – Burning Life will be added to Codices as [Unique Option: Seed of Karmic Fire].

Unique Option: Forbidden Catalyst

The effect previously available as a general Codex option, “[Dimensional Tunnels] have occurred in each of the Outskirts and Interior of the Unidentified Area,” will be changed to [Unique Option: Forbidden Catalyst].

Zero System - [Archive] Unlocked

The Archive feature, where you can read stories about the gods, has been unlocked. Stories in the archive will be unlocked sequentially by clearing Codices with the [Unique options - Divine intervention].

Zero Matrix Reward Reset

Compensation Claim Period02/04/2026 – 04/08/2026

The Zero Matrix rewards have been reset.

Codex Unlock Level Adjustment

The Captain Level required to unlock the Codex has been adjusted from 30 to 40. A 4th Codex difficulty level has been added, along with related Achievements.

ID Card Editing Feature Added

  • An ID Card decorating feature will be added, allowing you to create your own ID Card.
  • You can enter the ID Card editing screen by selecting [Account Info] → [ID Card] → [Edit ID Card].
  • In the editing screen, you can select and apply a background from the Background tab. In the Sticker tab, you can attach stickers you have obtained.
  • * Up to 20 stickers can be attached to an ID Card.

ID Card Guide

Arkhianon Supply - Seasonal Missions Added

  • Six new season missions will be added to Arkhianon Supply.
  • Complete [Galactic Disaster] Story - Chapter 1 [# 10 Standoff]
  • Clear [Galactic Disaster] Chaos - [Burning Life] Stage 3
  • Defeat [Galactic Disaster] Nebula Distortion - [Elemental Spirit]
  • Defeat [Galactic Disaster] Nebula Distortion - [Viadeus]
  • Complete [9th Street Mercenary Office] Third Request [Old and Shabby Relic]
  • [Dimensional Twilight] Clear “3rd Basin”

Arkhianon Supply Guide

2 New Types of Memory Fragments Added

Two new types of Memory Fragments have been added: Beast's Yearning and Glory’s Reign.

Beast's Yearning[4-Set]
+30% Damage Amount to Justice, Order Exhaust Attack Cards (5 times per turn)
Glory’s Reign[4-Set]
When generating or using Exhaust Skill Cards, +5% to Damage Amount of all allies (max 15%)

Memory Fragments Guide

Rework Implemented

Tressa and Cassius Reworked

Tressa and Cassius, who were central to the Season 1 combat meta, have been reworked. The official announcement states that "this decision was made in consideration of the combat experience and team-building gameplay, as they were so influential that there was little need to consider other options."

TressaCassius

Progression for Reworked Combatants Can Be Reset

PeriodAfter maintenance on Feb 3 (Tue) - Before maintenance on Feb 24 (Tue)

For the Combatants Tressa and Cassius, who underwent a complete rework as part of balance adjustments, a feature will be provided free of charge that allows you to reset their progression and be refunded for the resources spent.

Balance Adjustments

Combatant Adjustments

LukeKhalipeMagnaRin
OrleaVeronicaRenoaHugo
HaruKayronYuki
Chizuru
NiaSelenaTressaMaribell
BerylCassiusOwenRei

Counterattack Effect Adjustments

  • Before: Each time Agony is inflicted, it is applied as a new debuff to the target. At the end of the turn, each Agony debuff deals damage and its stack decreases by 1. Critical hits do not apply to Counterattack damage.
  • After: When taking damage, deals 100% defense-dependent damage to the attacker. If an Attack is perfectly blocked by a Shield, deals 200% defense-dependent damage to the attacker. When the effect activates, Counterattack decreases by 1. (Max 10) Critical hits are applied to Counterattack damage.

Agony Effect Adjustments

  • Before: Each time Agony is inflicted, it is applied as a new debuff to the target. At the end of the turn, each Agony debuff deals damage, and its stack is reduced by 1. At the end of the turn, deals 50% fixed continuous damage according to the number of Agony instances. When the effect activates, one instance of Agony is removed.
  • After: Agony inflicted by the caster now stacks as a single debuff. At the end of the turn, it deals damage according to the number of Agony stacks, and the stacks are then halved. (The number of damage hits increases according to the number of stacks). At the end of the turn, deals 50% fixed continuous damage according to the number of Agony stacks. When the effect activates, the number of Agony stacks is halved. (Max 20 stacks).

Partner Adjustment

AsteriaWestmacottItsuku

Equipment Adjustment

    • Brainwave-Blocking Helmet
    • Psionic Combat Suit
    • Dimensional Cube

Common Card

  • Wanderer of the Void
  • Tactical Action
  • Acid Gas
  • Rally

Monster Cards

  • Spirit Kefox

New Ark City Nodes and Items Added

10 new research nodes and 4 new items have been added to Ark City.

List of Added Research Nodes

NodeEffect
Epione Cost Reduction
Delete Memories Cost Reduction
Nono’s Shop Training Support
Unlock New Items from Nono’s Shop (Battle Memory, Support Data)
Additional Aether Storage
Amount of Aether storage increase
Materials Merge Cost Reduction
Item Merging/Dismantling Cost Reduction
Upgrade Cost Reduction
Upgrade Memory Fragment Cost Reduction
Nono's Shop Upgrade Support
Unlock new items in the Nono’s Shop (Core of Memory)
Unofficial Excursion Permit
Increase the maximum amount of Communications Passes you can have by 1
Improve Policy Process
Policy Point acquisition will be increased
Advanced Policy Research
Reduce Policy recharge time
Nono’s Shop Equipment Support
Unlock Nono’s Shop Traces item (Traces of Memory)

4 New Items Added

ItemPrice/Quantity/Purchase Limit/Purchase Restriction
Advanced Battle Memory[Price] Policy Point x10
[Quantity] 5
[Purchase Limit] 20 times
[Purchase Restriction] Weekly
Premium Support Data[Price] Policy Point x10
[Quantity] 5
[Purchase Limit] 20 times
[Purchase Restriction] Weekly
Core of Memory[Price] Policy Point x20
[Quantity] 1
[Purchase Limit] 20 times
[Purchase Restriction] Weekly
Traces of Memory[Price] Policy Point x20
[Quantity] 10
[Purchase Limit] 20 times
[Purchase Restriction] Weekly

Improvements

▼Improvements

Bug Fixes

Bug Fixes

▼Bug Fixes

CZN Latest Maintenance

February 25 Update Maintenance

Update Maintenance Image

ScheduleFebruary 25, 2026 01:00 – 06:00 UTC

Update Details

  • Tiphera & Tiana Rate-Up Rescue
  • Protos Sync - The Great Rift [Colossus]
  • Basin of Hyperspace Season 7

Past Maintenance Updates

Past Maintenance Updates and Patch Notes

Chaos Zero Nightmare Related Guides

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