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Chaos Zero Nightmare (CZN)

December 3 Patch Update

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S1: Forbidden Catalyst | Nebula Distortion | The Great Rift
★ All Banners | Upcoming Banners
New Characters: Chizuru | Itsuku
Upcoming Characters: Sereniel
Join Our Tier List Contest!
┗ Tier Lists: Character | Partner | Cards

December 3 Patch Notes

This is a patch summary list for the changes coming on December 3's patch for Chaos Zero Nightmare (CZN). Read on to view a summary of the livestream including Chizuru's info, additional features, new events, and other quality of life and game changes.

New Content and Updates
Forbidden Catalyst: Season 1 Updates December 3 Patch Notes

List of Contents

December 3 Livestream Summary and Upcoming Changes

Chizuru Character Release

Chizuru Chizuru
Faction: Peltion Peltion
Class: Psionic Psionic
Attribute: Void Void
Gender: Female

The latest upcoming character Chizuru will be released alongside the patch update on the 3rd of December.

Chizuru Release Date and Profile

Combat Simulation Available

Virtual Tactical Simulation for Chizuru will be available. The simulation is up from 12/03/2025 - 12/24/2025 right after each respective maintenance on those days.

Partner Character: Itsuku Release

Partner Details
Itsuku.pngItsuku Rarity: ★★★★★
Faction: Peltion
Class: PsionicPsionic
Partner Passive: Tranquil Marker
Ego Skill: Moonlit Leisure

Forbidden Catalyst Chapter 2 Unlock

The next chapter for the Forbidden Catalsyt called Seals and Forbidden unlocks on December 3 after the patch update. The story will be available to take after the patch update. The mission can be accessed after completing Chapter 1 Episode 9's Joint Investigation Begins.

The Great Rift Unlocks

Great Rift

Tackle a boss from a rift that appear near Laboratory 0. Defeat it using the strongest deck and rack up scores. It can be accessed either with a basic save data or a Forbidden Catalyst save data.

The first half will be avaialble right after the patch until December 23 17:59 (UTC +0) while its second phase will begin after the maintenance until 01/13/2026 17:59 (UTC +0).

The Great Rift Guide

2nd Supply Store Unlock

Spend Pure Fragments to purchase new items from the 2nd batch of the Supply Store.

Item Limit Cost
Omega Code x1 1x Pure White Fragment x6,000
Rescue Anchor x1 5x Pure White Fragment x1,500
Prism Lens x1 5x Pure White Fragment x1,200
Undetermined Ego Crystal x1 1x Pure White Fragment x4,000
Shards of Condemnation x1 5x Pure White Fragment x200
Multidimensional Alignment Material x1 1x Pure White Fragment x4,000
Advanced Psionic Manual x1 20x Pure White Fragment x20
Premium Psionic Certificate x1 20x Pure White Fragment x20
Premium Growth Stone of the Void x1 20x Pure White Fragment x60
Traces of Memory x1 200x Pure White Fragment x30
Core of Memory x1 20x Pure White Fragment x200
Particles of Memory x1 200x Pure White Fragment x10
Exquisite Slice of Cake x1 5x Pure White Fragment x400
Sweet Choconilla x1 10x Pure White Fragment x200
Advanced Battle Memory x1 200x Pure White Fragment x50
Advanced Support Data x1 100x Pure White Fragment x50

New Feature: Unigram

A messenger-like system is added to the game that lets you talk with combatants will be added to the game. It can be accessed from the lobby -> Menu -> Unigram.

Combatants Available as Unigram Chat Options
Tressa Tressa Haru Haru Mika Mika Yuki Yuki
Beryl Beryl Chizuru Chizuru Rei Rei -

New Permanent Shop Category: Blackhorn Trade

Content Difficulty Level Maximum Obtainable Crystal of Discord
Chaos Manifestation Difficulty Level 1-2 150
Difficulty Level 3-6300
Codex Difficulty Level 5-10 300
Galactic Disaster Chaos Difficulty Level 1-11 300

Doing chaos runs will now net you Crystals of Discord that will let you purchase items from the Blackhorn Trade. This gives you a reward that lets you obtain items per completed run.

Blackhorn Trade Item List

Item Purchase Limit Price
Rescue Anchor Rescue Anchor 5x / month 600
Eye of Wailing Prodigal Eye of Wailing Prodigal 8x / account 300
Shards of Condemnation Shards of Condemnation 12x / account 300
Traces of Memory Traces of Memory x20 50x / account 150
Great Growth Stone of Passion Great Growth Stone of Passion 250x / account 40
Great Growth Stone of Void Great Growth Stone of Void 250x / account 40
Great Growth Stone of Instinct Great Growth Stone of Instinct 250x / account 40
Great Growth Stone of Order Great Growth Stone of Order 250x / account 40
Great Growth Stone of Justice Great Growth Stone of Justice 250x / account 40
Advanced Striker Manual Advanced Striker Manual 50x / account 30
Advanced Vanguard Manual Advanced Vanguard Manual 50x / account 30
Advanced Ranger Manual Advanced Ranger Manual 50x / account 30
Advanced Hunter Manual Advanced Hunter Manual 50x / account 30
Advanced Psionic Manual Advanced Psionic Manual 50x / account 30
Advanced Controller Manual Advanced Controller Manual 50x / account 30
Advanced Striker Certificate Advanced Striker Certificate 40x / account 30
Intermediate Vanguard Certificate Intermediate Vanguard Certificate 40x / account 30
Advanced Ranger Certificate Advanced Ranger Certificate 40x / account 30
Advanced Hunter Certificate Advanced Hunter Certificate 40x / account 30
Advanced Psionic Certificate Advanced Psionic Certificate 40x / account 30
Advanced Controller Certificate Advanced Controller Certificate 40x / account 30
Advanced Battle Memory Advanced Battle Memory x5 400x / account 50
Advanced Support Data Advanced Support Data x5 200x / account 50
Core of Memory Core of Memory 100x / account 100
Particles of Memory Particles of Memory x20 50x / account 60
Unit Unit x15,000 200x / account 100
Unit Unit x10,000 200x / account 100
Unit Unit x1000 No Limit 100

New Event: See You On the Unigram

A mission focused on bonding with Rei. Use the Unigram, Give Rei gifts, and view stories to proceed the quest.

No. Mission Reward
1 Greet Rei\(Send her your first message) Crystals Crystals x10
2 Visit the Cafe with Rei
(Order a coffee at the Garden Cafe)		 Cute Rabbit Doll x1
3 Pick a gift
(Give the ‘Cute Rabbit Doll’ to Rei as a gift)		 Crystals Crystals x10
4 Talk about the aroma of coffee with Rei
(Order a coffee at the Garden Cafe)		 Locket Necklace of Memories x1
5 Pick a gift
(Give the ‘Locket Necklace of Memories’ to Rei as a gift)		 Crystals Crystals x10
6 Chat about hobbies
(Watch the story ‘Things I Like’)		 Crystals Crystals x10
7 Enjoy a cup of coffee with Rei
(Order a coffee at the Garden Cafe)		 A Not So Boring Wait x1
8 Pick a gift
(Give the ‘A Not So Boring Wait’ to Rei as a gift)		 Crystals Crystals x10
9 Offer counseling
(Watch the story ‘What I Can’t Give Up’)		 Crystals Crystals x10
10 Tour the cafe with Rei
(Order a coffee at the Garden Cafe)		 Heartfelt Guitar Pick x1
11 Pick a gift
(Give the ‘Heartfelt Guitar Pick’ to Rei as a gift)		 Crystals Crystals x10
12 Fulfill your promise with Rei
(Watch the story ‘An Empty Classroom After School’)		 Prism Lens Prism Lens x5

New Event: Chasing the Star's Trajectory

Day Reward Quantity
1 Unit Unit 100,000
2 Sweet Choconilla Sweet Choconilla 3
3 Tear of God Tear of God 1
4 Universal Tactical Certificate Universal Tactical Certificate 30
5 Universal Support Certificate Universal Support Certificate 25
6 Potential Disk Potential Disk 20
7 Rescue Anchor Rescue Anchor 10
8 Unit Unit 100,000
9 Sweet Choconilla Sweet Choconilla 3
10 Tear of God Tear of God 1
11 Universal Tactical Certificate Universal Tactical Certificate 30
12 Universal Support Certificate Universal Support Certificate 25
13 Potential Disk Potential Disk 20
14 Prism Lens Prism Lens 10
15 Unit Unit 100,000
16 Sweet Choconilla Sweet Choconilla 3
17 Tear of God Tear of God 1
18 Universal Tactical Certificate Universal Tactical Certificate 30
19 Universal Support Certificate Universal Support Certificate 25
20 Potential Disk Potential Disk 20
21 Signal Amplification Anchor Signal Amplification Anchor 10

A 21 day login event that starts on the 3rd of December until the 14th of January (12/03/2025 - 1/14/2026). Obtain a new reward per login for a total of 21 rewards!

Affinity System Improvements

fave gift.png

There will be 4 gifts available to the game and each combatant will have a preferred gift among the 4 and giving them their liked gift will increase their affinity gain. Their favorite gift can be checked from the pop-up window.

Multiple other quality of life improvement will be added such as clicking the gift multiple times will increase the gift quantity, affinity gained from psychotherapy, policies and gifting will be easier to see, and more gifts can be obtained after going with combatants on Excursions.

Unit Consumption Improvements

The unit cost for upgrading combatants and partners will be reduced by 80%. This will alleviate the unit scarcity during the endgame and allow for more combatant progression.

New Memory Fragment Sets

Judgement's Flame Set 4-Set: +50% Damage Amount to Instinct Cards used to targets in a Ravaged state.
Orb of Inhibition Set 4-Set: When Hitting 2 times with 1 Attack Card, +10% Damage Amount to Void Cards for 1 turn (2 times per turn)

Rei's Special Lobby Unlocked

rei lobby

Rei's special lobby screen will be added after the update, while not much details has been given, it will likely be a level 10 affinity reward as well so if you want to obtain this special lobby, consider increasing your bonds with Rei.

Quality of Life Updates

Chaos Zone Changes
New choices available in Dimensional Tunnels
Zero System shortcut is now accessible in Laboratory 0
All currently owned Codices and any newly obtained Codices will permanently receive the option “Event [Dimensional Tunnel] occurred.”
Codices option will trigger a Dimensional Tunnel event, will allow you to obtain Forbidden Cards.
Save Data from Codex with Dimensional Tunnel modifiers will become seasonal data.
Demise Gate content added to Laboratory 0
Dimensional Tunnel location is now visible at all times.
Fate that reveals dimensional tunnel has been removed.
Battle Mission Changes
Rewards from battle missions will now contain Traces of Memory for Memory Fragment leveling. You will also gain more battle memories and support data by doing the missions.
Affinity Changes
Policy rewards in Ark City will be increased.
A current turn indicator will be added to the bottom of the combat log area.
During Basin of Hyperspace progress, the number of turns taken by Team 1 and Team 2 will be displayed below their respective HP bars.
A Quick Formation feature will be added to allow deploying multiple combatants at once when entering the Combatant List.
The card image for [Quick Shelling] will be updated.
When an item’s quantity exceeds a certain amount, it will now be displayed in an abbreviated format.
1,000,000 = 1000 K / 100,000,000 = 100M
The login screen will be improved so that options such as Settings / Error Report can be accessed directly.
The button positions in some Account Settings menus will be adjusted.
The screen animation and text effects displayed when a combatant has a mental breakdown have been improved.
Information about battle areas where Rare Species appear will now be displayed on the minimap.
Voice lines will be added for Ark City NPCs and [Dellang], the owner of the Dellang Shop.
A new option, “Set all monsters’ HP to 1 for the next 3 normal battles,” will be added to the first Divine Representative choice.
The previous option, “Set all monsters’ HP to 1 for the next 2 normal battles,” will be removed.
Unviewed Help tips will now be displayed at the top.
The storage limit for Memory Fragments will now be displayed.
When defeating a boss during Chaos Manifestation, Codex, or Galactic Disaster Chaos gameplay, additional rewards, “Units” and “Traces of Memory,” will be granted based on the difficulty of the Chaos.
Animation Changes
A harmful effect animation will be added when the Breakdown Penalty occurs.
A beneficial effect animation will be added when Reconstructing Consciousness occurs.

Bug Fixes

General Bugfix
Typos and text errors in story content and descriptions will be corrected.
An issue where, a Common Card reward in an Unidentified Area could become unselectable due to being incompatible with the character’s class will be fixed.
An issue in Unidentified Area > Remnants of Failure where the electric effect appeared behind the ship when the roll succeeded will be fixed.
An issue in Galactic Disaster > Relay Area where reward options that could not be obtained appeared will be fixed.
An issue in Galactic Disaster where the penalty list for the highest Chaos stage was displayed incorrectly upon Chaos clear or defeat will be fixed.
An issue in Galactic Disaster where non-target cards appeared during the Forbidden Card conversion animation will be fixed.
Confusingly displayed conditions in certain Galactic Disaster Achievement Goals will be corrected.
An issue where the required currency appeared as 0 in specific situations after Ego Manifestation will be fixed.
An issue where Simulation Battle completion was not properly reflected in the event banner will be fixed.
An issue in the Shop where certain combatants’ Memory Codes could not be purchased correctly will be fixed.
A malfunctioning red-dot notification in Zero System, Chaos, and Trauma Code will be fixed.
An issue in Galactic Disaster > Laboratory 0 where one of the Initial Clear Reward, Crystals, did not update immediately in the storage will be fixed.
An issue in Breakdown > Link Crash where the animation displayed incorrectly under certain conditions will be fixed.
An issue wherethe Upgrade Reset button malfunctioned after restarting the game following a Codex upgrade will be fixed.
The Codex Exploration description in the Divine Representative’s help section will be corrected.
An issue where characters did not display properly during the capsule boarding animation when entering Chaos will be fixed.
An intermittent issue where characters were not displayed properly on the results screen after a story ends will be fixed.
An issue where victories achieved through additional attacks after turn end did not count toward “win within X turns” objectives will be fixed.
An issue where rapidly selecting options in the Starshine Diner caused abnormal behavior will be fixed.
An issue where selecting the Shield or Credit icons before starting a story caused the story to proceed without closing the pop-up will be fixed.
An issue where rapidly selecting the Mailbox caused incorrect behavior will be fixed.
An issue where the achievement “Does God Play Dice?” could not be completed will be fixed.
An issue where Renoa’s Trauma Code progress displayed as 0% upon reconnecting will be fixed.
An issue where the Invite Friends feature under Friend > Find Friend allowed only five users to be invited will be fixed.
An issue where Mika’s SD model appeared in a Breakdown state during the tutorial will be fixed.
An issue where Epiphany Cards were incorrectly listed as Unique Cards in Help > Cards will be fixed.
An issue where the arrow icon for available combat nodes did not function correctly will be fixed.
An issue where mission difficulty was not displayed in the unlock conditions for Hard Battle Missions will be fixed.
An issue where using the Quick Menu could return the player to the lobby under certain conditions will be fixed.
An issue where obtaining more than 10 items prevented all rewards from being displayed will be fixed.
An issue where, on PC, the Dellang Shop Equipment/Card purchase popup could not be closed with the ESC key will be fixed.
An issue where Yuki’s cards did not appear in the Card Collection will be fixed.
Combat Bug Fixes
An issue where the stack effect of Rin’s Dark Mist Inner Art 5th Epiphany Upgrade card did not function properly will be fixed.
An issue where Kayron’s “Echo of Futility” 3rd Epiphany Card did not apply its effect when defeating an enemy will be fixed.
An issue where Mei Lin’s “Unity of Attack and Defense” 1st Epiphany Card behaved differently from its description will be fixed.
An issue where Luke’s “Stealth Reload” 3rd Epiphany card generated a different type of bullet card will be fixed, and an issue where the continuous effect stack count gained from using this card was displayed as 1 will be fixed.
An issue where Renoa’s 3-1th and 7th Potential Nodes did not apply their “Dirge Bullet” upgrade effects to extra attacks will be fixed.
An issue where the description of Alyssa’s Partner Skill did not change color when in Injured State will be fixed.
An issue where certain cards’ draw effects did not function properly will be fixed.
(Affected cards) Luke’s “Rapid Fire” 5th Epiphany Card, Hugo’s “Dingo Howling” 5th Epiphany Card, “Forbidden: Engraved Malice” Card, “Extended Magazine” 4th Epiphany Card, and Marin’s Partner Skill
An issue where Owen’s “Wind Charge” 2nd Epiphany Card did not consume Wind Charge when activating a Ballista Card afterward will be fixed.
An issue where Ballista Card did not function properly when activated by “G Chord”, “Mute Accent”, or “Forbidden: Engraved Malice” Cards will be fixed.
An issue where Mika’s “Whirlpool” 5th Epiphany Card caused abnormal monster hit animations will be fixed.
An issue where Mika’s “Blessing of Waves” 5th Epiphany Card did not apply its healing reduction indicator will be fixed.
An issue where Meilin’s “Flame Dragon's Jewel” and Ego Manifestation Stage 2 triggered as harmful buffs will be fixed.
An issue where Tressa’s 7th Potential Node did not grant additional Void Damage will be fixed.
An issue where Bria and Eloise’s skill descriptions for “Status Ailment” cards did not clearly state “includes cards that have been changed from Status Ailment cards” will be fixed.
An issue where Eishlen’s skill description did not clearly indicate when its effects are gained will be fixed.
An issue where the Spark of Passion effect from Memory Fragment was not consumed when activating the Ballista Card afterward will be fixed.
An issue where the 7th Potential Node activated even when its conditions were met through Chaos Upgrades will be fixed.
An issue where the effect of Corrupted Rare Species was incorrectly applied to cards in the Exhaust pile will be fixed.
An issue where “Dirge Bullet” did not benefit from Conqueror’s Aspect critical damage increase will be fixed.
An issue where the description for [Retrieve] was not displayed will be fixed.
An issue where “Nature's Benediction” Card’s Blessing did not activate when using Ego Skills will be fixed.
An issue where battle logs from the previous combat appeared when encountering Invasion monsters will be fixed.
An issue where some continuous effect icons from the previous team’s information were incorrectly displayed during Invasion encounters will be fixed.
An issue where Agony effects were displayed on monsters that did not take Agony damage will be fixed.
An issue where Kentris’s Aqua Orb summon effect did not display properly will be fixed.
An issue where Monster Cards obtained in a previous battle appeared again in the next battle area will be fixed.
An issue where the descriptions of 3 Nerve Hacking Module equipment were incorrectly displayed will be fixed.
An issue where used cards would intermittently remain on the field will be fixed.
An issue where the battle could not proceed when using the "Undo the last action" function in certain Unidentified Area battles will be fixed.
An issue where the achievement “Use a Protos Skill N times in a single battle” would not complete under certain conditions will be fixed.

Related News

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Events and Game Info

Events and Game Info
List of Events Bugs and Errors Server Status and Patch Notes

Latest News

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Preload Guide and Time Release Time and Countdown
Available Platforms and System Requirements Will Chaos Zero Nightmare Have PvP?
Is There Crossplay? Is Chaos Zero Nightmare Open World?
How to Pre-Register and Rewards Is There Controller Support?

Patch Notes

All Patch Notes and Updates
November 12 Patch November 4 Patch
November 1 Patch October 30 Patch
October 28 Patch October 24 Patch
October 22 Patch -

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