Events list in Chaos Zero Nightmare (CZN). Guide includes list of all current ongoing events, upcoming events, new events, event rewards, schedules, and how to check events in CZN.
Table of Contents
Chaos Zero Nightmare Latest Events
Half Anniversary Pre-Event
| Event Period | 4/08/2026 – 05/27/2026 |
Players can check visiting Agents, earn rewards by spending Aether on Festival Missions, and receive an additional 40 Aether from the Garden Café.
Full-Scale Offensive
| Event Period | 04/08/2026 – 05/27/2026 |
| Unlock Conditions | Captain Level 40 |
| Rewards | Crystals, Traces of Memory, Prism Lens, Particles of Memory, Units |
Full-Scale Offensive lets players challenge three Great Rift bosses using separate teams, earning scores within a 10-turn limit based on damage and objectives.
Operation: Firebreak
| Event Period | 04/08/2026 – 04/29/2026 |
| Unlock Conditions | Captain Level 30 |
| Rewards | Crystals, Traces of Memory, Prism Lens, Particles of Memory, Units |
Operation: Firebreak tasks players with suppressing the resurgence of the Chaos anomaly “Burning Life” and eliminating its remaining threats across nearby planets.
Area of Operation Schedule & Rewards
Love Gathered at the Wingtips
| Event Period | 04/08/2026 – 04/29/2026 |
| Rewards | Crystals, Omega Code, Flash of Potential, Signal Amplification Anchor, Rescue Anchor |
Limited-time event where players resolve incidents in Haven with Diana, using her trial Save Data while progressing through event missions and earning limited-time achievement rewards.
Love Gathered at the Wingtips Rewards
Operation: Diana Rescue
| Event Period | 04/08/2026 – 04/29/2026 |
| Rewards | Tear of God, Multidimensional Alignment Material, Undetermined Ego Crystal, Signal Amplification Anchor, Prism Module [Masterpiece] |
An event will be held where you can obtain rewards based on the cumulative number of rescues during the period.
Partner Special Rescue
| Event Period | 04/08/2026 – 05/27/2026 |
| Rewards | 5★ Partners |
Partner Special Rescue increases the chances of obtaining 5★ Partners, featuring discounted 10-pull rescues and guaranteeing a 5★ Partner within 50 attempts.
Overdrive - Simulation
| Event Period | 04/08/2026 – 04/14/2026 18:00 (UTC) |
| Rewards | 5★ Partners |
Overdrive – Simulation grants double Growth Currency rewards, with players able to claim x2 Simulation rewards up to 6 times daily, resetting each day at 18:00 (UTC) during the event.
Chaos Regular Survey
| Event Period | 04/08/2026 – 05/03/2026 18:00 (UTC) |
| Rewards | Flash of Potential |
The Chaos Regular Survey event rewards players for clearing Chaos or Codex twice each week, with progress and rewards resetting every Sunday at 18:00 (UTC).
Into The Depths of Despair
| Event Period | 04/21/2026 18:00 – 05/05/2026 18:00 (UTC) |
| Rewards | Chaos Selection Chest |
During the event, clear Into the Depths of Despair missions to obtain a Chaos Selection Chest, allowing you to choose 30 Chaos Orbs or 100 Crystals of Discord.
Daily 2 Free Codex Merging Event
| Event Period | 04/08/2026 – 07/08/2026 |
| Rewards | 2 Codex Merges Daily |
During the Event period, up to 2 Codex Merges can be performed for free each day.
Chaos Zero Nightmare Permanent Events
Garden Cafe’s Returnee Present
| Event Period | 14 days from the date of return (available on an ongoing basis) |
| Participation Requirements |
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A special surprise event will be held at the Garden Cafe for Protos returning. Earn various rewards from Bella based on the total amount of Aether spent during the event period.
See You on the Unigram
| Event Period | Permanent |
| Rewards | Crystals, Cute Rabbit Doll, Locket Necklace of Memories, A Not So Boring Wait, Heartfelt Guitar Pick, Prism Lens |
Clear each mission and increase Rei’s Affinity to unlock a special Bond Story.
The Path of a Captain
| Event Period | Permanent |
| Rewards | Rescue Anchor, Signal Amplification Anchor |
You can claim event rewards upon reaching the designated Captain Level (Account Level). Build your expertise as an elite Captain and earn generous rewards!
Rookie Captain Mission
| Event Period | Permanent |
| Rewards | Beryl , Universal Tactical Certificate, Rosaria, Universal Support Certificate, Potential Disk |
Take on Rookie Captain missions to unlock agents and gather growth materials. Each mission can be completed only once, so claim your rewards as you go!
Beryl Rating and Recommended Build
Journey of Healing: Rei
| Event Period | Permanent |
| Rewards | Rei |
Once you unlock Ark City and restore Rei's heart, you will have the opportunity to recruit the combatant Rei. Complete the required story events and missions to officially add Rei to your roster and unlock her unique abilities for battle.
Rei Rating and Recommended Build
Chaos Zero Nightmare How To Check Events
In the main lobby, select the Calendar icon. This will open the Events menu where you can view current and upcoming events, including limited-time and permanent events.
Can Also Be Opened at the Menu
You can also open it from the navigation menu by tapping the three horizontal lines at the top corner of the screen.
Latest Updates and Maintenance Schedule
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