How to restore stamina (Aether) in Chaos Zero Nightmare (CZN). See how to recharge, restore stamina, recovery items, maximum stamina gauge cap, energy regeneration, tips, and more.
Table of Contents
How to Restore Aether
Aether Restores Over Time
Aether, the stamina in CZN, restores 1 every 6 minutes. It takes exactly 24 hours to restore to the cap, so be sure to log in daily and consume your stamina regularly.
Using Recovery Items
Stamina can be restored by 60 using recovery items. There are two types of recovery items: Tear of God, which can be obtained from Growth Guide rewards, and Ether Vial Powder, available at the Garden Cafe.
Using Crystals
Stamina can also be restored with Crystals. Recovery with Crystals is limited to 8 times, and the number of Crystals required increases with each recovery.
Number of Crystals Required for Recovery
| Number of Recoveries | Crystals Required |
|---|---|
| 1st time | 50 |
| 2nd time | 50 |
| 3rd time | 70 |
| 4th time | 70 |
| 5th time | 100 |
| 6th time | 100 |
| 7th time | 150 |
| 8th time | 150 |
Restore at the Garden Cafe
At the Garden Cafe, once a day, you can choose between an instant 80 stamina recovery or obtaining a 60 stamina recovery item. For the recovery items obtained here, you can hold up to 4 at a time.
Aether Recovery Cap
Fully Recovers in One Day
The stamina recovery cap from time passage in CZN is 240, and it fully recovers in 24 hours. It will not recover beyond the maximum, so make sure to use your stamina to prevent it from overflowing.
Stamina Recovery Benefits
Raise Your Captain Level Faster
By restoring stamina and taking on a Simulation, you can gain experience for your Captain Level. As your Captain Level increases, you will also be able to meet the requirements to take on Promotion Missions.
Efficiency Doesn't Change No Matter When You Use Them
By using stamina recovery items from a low level, you can raise your Captain Level faster and challenge higher difficulty Simulations early on. There is little reason to save recovery items, so use them proactively from the beginning.
Chaos Zero Nightmare Related Guides
Early Game Guide
Daily Tasks
Recommended Gacha Banner
Ark City Guide
Card Epiphany Activation
How to Use Ego Skill
Stress Management
Weakness Attribute Guide
Safe Zone Guide
How to Raise Captain Grade
ID Card Settings
Battle Pass (Arkhianon Supply) Guide & Should You Buy?
Simulation Guide
Twin Star's Shadow Guide
How to Download & Sync Data
Deep Trauma Guide
Latest Updates 
Character Enhancement Guide
How to Set and Upgrade Partner
How to Upgrade Potential
How to Use Save Data
How to Upgrade Manifest Ego
Memory Fragments 
Prism Modules
Daily Reset Time
Zero System
Galactic Disaster First Update
