Chaos Zero Nightmare

In-app purchases
155K reviews
Content rating
PEGI 12
1M+
Downloads
Content rating
PEGI 12
Sexual Innuendo
Learn more
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About this game

Zero Out All Despair
Smilegate's new title, "Chaos Zero Nightmare," is now open!
Board the SS Nightmare now!

Chaos.

A cosmic disaster that struck without warning.
The beginning, or the end, of every story.
"Chaos," a black fog that consumes planets, distorting their environment and lifeforms.
..
[The Blue Pot], a Chaos located on Earth, the birthplace of humanity. There have been reports of unidentifiable creatures being discovered.
And for some reason, a strange phenomenon that couldn't—no, shouldn't—be happening to the Captain is occurring.

▶ A World Drenched in Darkness, A Story Etched in Memory
Dive into a vast and haunting dark fantasy narrative!
Crushing stress, collapsing agents... and yet, the mission continues.
Break through the encroaching crisis and immerse yourself in a brutally vivid dark fantasy experience.

▶ A New Kind of RPG, Rewritten with Every Choice
Aim through the agents' eyes and feel the weight of combat at your fingertips!
Unique cards, branching choices, and evolving "Save Data" shaped by your journey through the Chaos.
Every run is unique. Build your own strategy and master the ever-changing battlefield.

▶ Characters That Dazzle the Eyes and Steal the Heart
Gorgeous 2D illustrations and striking animations make every moment a visual delight!
Fully voiced by top-tier voice actors, each scene draws you deeper into the story.
Join a cast of unforgettable characters in battle and beyond, and cherish every moment of your journey together!

※ How to Manage Permissions
After allowing access to permissions, you can reset or deny them as follows.
[OS version 6.0 or higher]
Settings > Apps > Select the App > Permissions > Allow or Deny Permissions
[OS version below 6.0]
Upgrade the OS to revoke permissions, or delete the app.

⁜⁜Stay up to date with the latest news on Chaos Zero Nightmare! ⁜⁜
Brand Page: https://chaoszeronightmare.onstove.com/
Official Community: https://page.onstove.com/chaoszeronightmare/en
Official YouTube: https://www.youtube.com/@ChaosZeroNightmare_EN
Official X: https://x.com/CZN_Official_EN
A Chaos-Loop RPG Driven by Choice
Updated on
Oct 30, 2026
Events & offers

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • You can request that data be deleted

Ratings and reviews

146K reviews
Alekimsior
April 8, 2026
Drop rates are terrible, the shared pool between Partners and Combatants make pulling the real Nightmare of this game. Not even pity rate guarantees a 5 star banner item. The progression continues to be slow, with no combat speed increase nor automatic play in some modes. You may find fun in combining, refining decks, but it seems the effort to do so is immense.
51 people found this review helpful
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Smilegate, Inc.
August 18, 2026
Hello, Protos! Thank you sincerely for sharing your valuable feedback about Chaos Zero Nightmare. We understand that you may have expressed disappointment with your gaming experience. We are dedicated to becoming a better Chaos Zero Nightmare, and we thank you for your support. ■ Official Community : https://page.onstove.com/chaoszeronightmare
Mr.McFierce (Blackmajik)
February 21, 2026
Update 02/2026: The longer I've played, the more I feel the director's interference with the game's identity and story is actually working as intended for them and not for those drawn by the potential mature vibes brought by the notes of horror and despair. The game still looks and plays well, but the data mined images and mentions of how dark the old story would be makes the reach for a wider audience more apparent. I'll just take this as the game no longer being what I wanted.
23 people found this review helpful
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Smilegate, Inc.
September 17, 2026
Zero Out All Despair! This is Chaos Zero Nightmare. Hello, Protos! Your enjoyment and satisfaction mean everything to us, and we’re truly sorry whenever we fall short of delivering that joy. Please know that we carefully review all user feedback and are committed to creating even more engaging content ahead. Thank you for your continued support!
Skye Mori
November 5, 2025
Animations, pixel, graphics are all top notch. Even resources are a thing in this game. 4 stars or maybe 3 if i'm not generous enough to rate it since i've been playing so much gacha games that this is not the worst kind of gacha i've got. The guaranteed character didn't show up meaning you need to find a way to maybe at some point, earn more than the "70" pulls you need for that character.
31 people found this review helpful
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Content rating
PEGI 12
Sexual Innuendo
Learn more

App support

About the developer
Smilegate, Inc.
help@smilegate.com
분당구 판교역로 220, 5층(삼평동, 쏠리드스페이스 빌딩) 성남시, 경기도 13493 South Korea
+82 1670-0399

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