Chaos Zero Nightmare

Chaos Zero Nightmare Ark City Guide: Key Locations and Tips

Chaos Zero Nightmare Artwork 7

Ark City is your base of operations in Chaos Zero Nightmare, unlocked after Chapter 2. It’s where you prepare for Chaos runs, manage your account, run daily routines, and supercharge long-term progression. Here’s an overview of all major Ark City locations, features, and expert tips to maximize account power and resource income!

Key Ark City Locations & Their Functions

FacilityWhat It Does
Policy OfficeApprove policies (every 3 hours); keep city status high, manage ongoing disaster/calamity mechanics. Earn Policy Points for Nono’s Shop and unlock account-wide boosts.
Starshine DinerPurchase daily food for buffs in your next Chaos run. Food choices overwrite previous buffs.
Garden CafeDaily either: recover 80 Aether instantly or obtain Aether healing item (max 4 stored). Great for farming.
Epione CenterHeal characters who developed Deep Trauma (via Psychotherapy with Communication Pass) and unlock Trauma Codes/events.
Research FacilitySpend Research Notes to unlock/upgrade nodes: boosts to stamina (Aether), policy rate, max Communication Passes, and more.
Nono’s ShopUse Policy Points for Research Notes, event unlocks, Trauma Code entries, and Memory Fragments/stat reveals.
Excursion ZonesSpend time with characters using Communication Passes in Main Street, Vacation Spot, Academy, or Admin District; raises Affinity, triggering permanent stat/bonus unlocks.

Daily Progression Tips

  • Approve Policies every 3 hours for a steady flow of Policy Points and city boosts.
  • Stop by Garden Cafe for extra Aether recovery or storable refills, never waste daily stamina potential!​
  • Order food at Starshine Diner before big Chaos runs to gain critical buffs (damage, shield, recovery rates).
  • Treat Trauma ASAP in Epione Center to keep combatants functional; neglect hurts clear rates and reward access.
  • Buy all Research Notes from Nono’s Shop to keep Research Facility upgrades rolling.
  • Spend all Communication Passes daily (for excursions or counseling) to maximize affinity and trauma recovery.

Advanced Account Tips

  • Research Facility unlocks critical upgrades: more Aether cap, Policy queue, and Communication Pass limits all boost your daily and event farming.​
  • Affinity system provides permanent stat buffs and unlocks animated wallpapers for your favorite units.
  • Therapy or “Memory Delete”: If a unit is too deep in Trauma, use the “memory delete” option to erase Trauma but lose associated save data.
  • Node Unlocking: Unlock extra zones for excursions via research, lets you work on more than 8 combatants a day.

Ark City Progression Priority

  1. Unlock all core facilities via Chapter 2 story progression.
  2. Set Policy Office and Garden Cafe as high-frequency stops.
  3. Focus Research Facility on increasing Aether/Communication Passes and Policy queue.
  4. Fill Affinity via diverse zone excursions.
  5. Buy Research Notes, Memory Fragments, and Trauma Codes from Nono’s Shop with Policy Points.

Further Reading & Tools

Master these routines and Ark City will fuel your Chaos runs and turbocharge your account growth!

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Jake is an SEO-minded Football, Combat Sports, Gaming and Pro Wrestling writer and successful Editor in Chief. Most importantly, he is a Gacha players who specialises in Genshin Impact. On top of that, Jake has more than ten years of experience covering mixed martial arts, pro wrestling, football and gaming across a number of publications, starting at SEScoops in 2012 under the name Jake Jeremy. His work has also been featured on Sportskeeda, Pro Sports Extra, Wrestling Headlines, NoobFeed, Wrestlingnewsco and Keen Gamer, again under the name Jake Jeremy. Previously, he worked as the Editor in Chief of 24Wrestling, building the site profile with a view to selling the domain, which was accomplished in 2019. Jake was previously the Editor in Chief for Fight Fans, a combat sports and pro wrestling site that was launched in January 2021 and broke into millions of pageviews within the first two years. He previously worked for Snack Media and their GiveMeSport site, creating Evergreen and Trending content that would deliver pageviews via Google as the UFC and MMA SEO Lead. Jake managed to take an area of GiveMeSport that had zero traction on Organic and push it to audiences across the globe. Jake also has a record of long-term video and written interview content with the likes of the Professional Fighters League, ONE and Cage Warriors, working directly with the brands to promote bouts, fighters and special events. Jake also previously worked for the biggest independent wrestling company in the UK, PROGRESS Wrestling, as PR Head and Head of Media across the social channels of the company.

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