Ark City Guide - Things You Can Do

This is a guide to Chaos Zero Nightmare's Ark City. Learn about Policy Points, Psychotherapy, Trauma Code, and all Ark City facilities like the Diner, Cafe, and Nono's Shop in CZN.

What You Can Do in Ark City

Ark City Facilities Summary

• Policy Office
• Starshine Diner
• Garden Cafe
• Epione Center
• Research Facility
• Nono's Shop

There are various facilities in CZN's Ark City, and by utilizing them, you can progress through the game efficiently.

Policy Office

In the Policy Office, Policies accumulate over time. By completing these Policies, you can earn Policy Points, which can be used to exchange for items at Nono's Shop.

Pay Attention to Project Information Too

In the Policy Office, projects such as disaster response are also in progress. If you can advance the Policies within a limited time and achieve the target value, you will receive rewards according to your Grade.

Starshine Diner

At Starshine Diner, you can order food by paying. Depending on the food you order, you will receive a Status Upgrade in Chaos.

Garden Cafe

At the Garden Cafe, it's possible to gain Aether once a day. You can choose to either instantly recover 80 Aether, or obtain Healing Item worth 60 Aether.

Tips!	Be careful, as you can only hold a maximum of 4 Healing Item.

Epione Center

At the Epione Center, you can use two types of content: Psychotherapy and Trauma Code.

Psychotherapy

With Psychotherapy, it's possible to treat Combatants who have fallen into Deep Trauma in Chaos. If you take a Combatant with Deep Trauma into Chaos, you will suffer disadvantages, so be sure to treat them proactively.

Trauma Code

You can also play Trauma Code at the Epione Center. Additionally, by using the Special Security Code sold at Nono's Shop, you can unlock Trauma Codes outside of their event period.

Nono's Shop

At Nono's Shop, you can exchange items with points obtained from Policies. In addition to Research Notes used for research, you can also obtain items that can confirm the stats of Memory Fragments, Training Materials, and Combatant Gift.

Research Facility

In the Research Facility, you can advance your research using Research Notes purchased from Nono's Shop. By advancing your research, you can gain effects that are advantageous for the game, such as shortening Policy generation time and increasing the amount of Aether you can store.

How to Unlock Ark City

Unlocked by Completing Chapter 2 #01-2

Ark City is unlocked by completing Chapter 2 #01-2 [Ark City]. Since you need to progress to Chapter 2, you should raise your Captain Level to 10 and challenge the Promotion Mission.

Chaos Zero Nightmare Related Guides

Beginner Tips

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 Restore Aether
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 Guides

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