Memories of Dreams Bygone
Zenless Zone Zero Version 2.3 "Memories of Dreams Bygone" Special Program-2
Release Date: October 15, 2025
Version 2.3 is the twelfth major release of Zenless Zone Zero.
Confirmed Details[]
Playable Agents[]
Lucia Elowen (, Ether, )- Yidhari Murphy (, Ice, )
- Komano Manato (, Fire, )
W-Engines[]
- Dreamlit Hearth (-Rank, )
- Kraken's Cradle (-Rank, )
- Grill O'Wisp (-Rank, )
Outfits[]
- Iris of the Shore (Vivian)
- White Heart Silhouette (Manato)
Signal Searches[]
Exclusive Channels[]
- Phase 1:
- Phase 2:
W-Engine Channels[]
- Phase 1:
- Phase 2:
Events[]
- All-New Program
- "En-Nah" Into Your Lap
- The Inverted Night Lantern
- When Dreams Remain Unfinished
- SNAP! Shining Strike
- Chronicle of Counseling
- Timesworn Hills Explorer's Guide
- 141 Eco Art Exhibition
- Data Bounty: Combat Simulation
- Advanced Bounty: Routine Cleanup
- The Final Callback, first half
- The Final Callback, second half
- New Eridu City Fund/2025-10-15
Commissions[]
New Areas[]
Enemies[]
- Wandering Hunter
- Haytor
- Drowned Ideal - Komano Manato
- Ionized Doppelganger Komano Manato
- Miasmic Doppelganger Komano Manato
- Miasmic - Frenzied Maniac
- Miasmic - Trinox
- Tactical Security Unit - Light Patroller
- Tactical Security Unit - Medium Patroller
- Tactical Security Unit - Security Enforcer
Gamemodes[]
Other Additions[]
- Partner Archive and Trust added for Lucia Elowyn, Yidhari Murphy, and Komano Manato.
Other New Content[]
New Content[]
- Adds the Wandering Hunter Challenge stage in Notorious Hunt, which drops the Core Skill enhancement item Crimson Miasma Spike. This item can also be exchanged in the Hidden Treasure section of the Outpost Logistics supply exchange.
- Adds new challenge stages to Expert Challenge.
- Dynamic wallpapers for Agents Lucia, Yidhari, and Komano Manato have been added. Obtain the corresponding Agent and increase your Trust Level to a certain amount to unlock.
- Adds new achievements related to Phaethon's Story, Agent Story, Agent Trust, When Opportunities Converge, Inter-Knot Hot Topic, Waifei Peninsula, Hostile Targets, Combat Achievements, and Investigation Zone Adventures, including some hidden achievements.
- Adds the Threshold Simulation: Branching Echoes badge set, which can be displayed after unlocking the hard mode of the corresponding gameplay.
- Adds editing functions for some badge sets.
- Adds titles related to Agent Trust, Hostile Targets, and Threshold Simulation: Branching Echoes.
- Adds exclusive avatars: Threshold Simulation: Branching Echoes - A Thousand Paths, A Thousand Changes , New Eridu City Fund Premium Plan - Sweet Dreams in the Breeze, and Agent avatars for Lucia, Yidhari, and Komano Manato.
- Added exclusive namecards: Threshold Simulation: Branching Echoes - Final Gambit, SNAP! Shining Strike - Project Shining Hollow, New Eridu City Fund Premium Plan - Upon a Pillow of Clouds, and Mindscape-related namecards for Lucia, Yidhari, and Komano Manato.
- Adds category tabs for namecards and avatars.
- Adds new accessories that can be exchanged in Devon Pawnshop for the Proxy Outfits Delicate Sunlight and Soaring Crane.
- Adds new collectibles that can be exchanged in Sān-Z STUDIO.
- Adds the Event Calendar in the event interface for quick access.
- Adds a new camera frame function.
- Adds a navigation button for the "Complete an Agent Invite event" errand in the Compendium.
- Adds an animated video preview function to the W-Engine details page, and sound effects to each W-Engine animation video.
- Adds PS5™ and PS5™ Pro platform trophy set: ZZZ - Memories of Dreams Bygone.
- Adds new achievements for the Xbox Series X|S platform.
Shiyu Defense[]
- Adds an Outpost Archives function, allowing you to check cooperative battle data from the last 6 defense operations.
- Adds a badge display function to the main interface of Shiyu Defense, allowing management of badges and titles.
- Adds the badge "Shiyu Defense: Lingering Sun," which tracks the total number of cycles with all S-rank clears in Shiyu Defense Critical Nodes starting from 2025/10/10 04:00 (server time).
- Adds prompts in the Compendium for when Shiyu Defense remains unattempted.
Deadly Assault[]
- Adds the Outpost Archives function, allowing you to view the broken-down data from your last 6 Deadly Assault operations.
- Adds a badge display function to the main interface of Deadly Assault, allowing management of badges and titles.
- Adds the badge "Deadly Assault: Disintegration," which tracks the number of cycles with cumulative 9-Star clears in Deadly Assault starting from 2025/10/17 04:00 (server time).
- Adds prompts in the Compendium for when Deadly Assault remains unattempted.
Hollow Zero[]
- Investigation Progress level cap is increased from 180 to 200. New Task Force Missions and their corresponding rewards are also added.
- Adds Tactical Prism Programs for Agents Lucia and Yidhari, along with the corresponding Task Force Missions. (Yidhari's Tactical Prism Program will be made available at the same time as the Agent's Exclusive Channel.)
- Adds new scenes and enemy units to the Task Force Investigation and Battlefront Purge Combat Areas.
- Adds exclusive Challenge stages for Agents Lucia and Yidhari in Perpetrator Battle - Task Force Assault. (Yidhari's exclusive stage will be unlocked simultaneously with the Agent Exclusive Channel)
Adjustments & Optimizations[]
Systems[]
- Optimizes the display and filtering experience of the Drive Disc Upgrade interface, while adding a new sub-stat recommendation function to the Drive Disc recommendation interface.
- Optimizes the red dot display logic for "Inter-Knot Missions", "Mail", "Profile", "More Functions", and other pages.
- Optimizes the auto-consumption logic for backup Ether Batteries.
- Optimizes the in-game time system adjustment method. When a Proxy logs into the game on each new real-world day, in-game time will automatically advance by one time period.
- Optimizes the display and navigation logic for the Special Training Plan interface.
- Optimizes the score limit display for Bizarre Brigade.
- Optimizes Agent Vivian's display in the Agent - Base and Agent - Skill interfaces.
- Adjusts the layout of entry points for the Main Menu interface and Additional Function interfaces.
- Adjusts the presentation of some plot-related text.
Others[]
- Optimizes some voicelines for English, Japanese, and Korean.
Issue Fixes[]
Agents[]
- Fixes an issue where, under certain circumstances, Agent Yuzuha's Flavor Match attribute conversion effect would not properly trigger when using an active Agent to attack enemies that are in the Sweet Scare state.
- Fixes an issue where Agent Vivian's umbrella animation would behave abnormally under certain circumstances.
- Fixes an issue where Agent models would behave abnormally on certain devices under certain circumstances.
- Fixes a visual issue where the camera would behave abnormally after Agent Alice performs a three-level charged Basic Attack: Starshine Waltz under certain circumstances.
- Fixes an issue, where under certain circumstances, some Agents could abnormally activate their Ultimate with abnormal camera behavior during a Bangboo Chain Attack.
- Fixes an issue where, under certain circumstances, abnormal visual effects would occur after Agent Seed activates Chain Attack: Tempest of Frosty Petals.
- Fixes an issue where, under certain circumstances, abnormal visual effects would occur when equipping the W-Engine Qingming Birdcage together with the outfit Yixuan - Trails of Ink.
- Fixes an issue where certain Agents' "when stunning an enemy" effects could still trigger even when enemies weren't stunned.
- Fixes an issue where Agent Anton would activate Assist Follow-Up: Limit Burst and perform Drill Attack on enemies ahead but fail to finish with Piledriver Attack, ensuring actual combat performance matches the skill description.
- Fixes an issue in Hollow Zero where, after equipping her Exclusive Gear: Chainsaw Operation Manual, Agent Corin would fail to properly gain Energy and Decibels when her chainsaw's consecutive slashes hit enemies.
- Fixes an issue where after activating Mindscape Cinema 02: Full of Colorful Company, Agent Yuzuha would sometimes only have one teammate Agent's Chain Attack available for selection when triggering Chain Attacks during combat through the effect of the aforementioned Mindscape.
- Optimizes the text description for Agent Seed's Mindscape Cinema 01: Hibernation Period. This adjustment is purely textual and does not affect the actual skill effects.
- Before adjustment: Gain an additional 40/20 Steel Charge when entering the battlefield/using Ultimate
- After adjustment: Accumulate an additional 40/20 Steel Charge when entering the battlefield/using Ultimate
Enemies[]
- Fixes an issue where, under certain circumstances, some enemy models would behave abnormally.
Systems[]
- Fixes an issue where, under certain circumstances, Drive Disc information would disappear when browsing the Drive Disc interface while using a controller.
Gameplay[]
- Fixes an issue where an interface navigation anomaly could occur when transiting between interfaces in the Suibian Temple gameplay under certain circumstances.
- Fixes an issue with the incorrect description text for the "Clarity" buff in Deadly Assault. The actual buff effect increases Agent Max HP by 25% and Sheer DMG by 15%. The fix only corrects the buff's text description, and the actual buff effect remains unchanged.
Environments[]
- Fixes visual issues affecting the models for some NPCs.
Others[]
- Fixes some text typos.
- Adjusts, improves, and fixes the in-game text for some languages. These changes will not affect gameplay or functions.
- Fixes text errors in some missions, interfaces, and descriptions.
Gallery[]
Animated Splashcreen[]
Videos[]
Version 2.3 Teaser - "Memories of Dreams Bygone" - Zenless Zone Zero-2
Zenless Zone Zero Version 2.3 "Memories of Dreams Bygone" Special Program-2
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