Chaos Zero Nightmare

In-app purchases
156K reviews
Content rating
USK: Ages 16+
1M+
Downloads
Content rating
USK: Ages 16+
Increased Incentives to Buy, Fantasy Violence, Sexual Innuendo
In-Game Purchases (Includes Random Items)
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.
53 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
Akamandra
October 22, 2025
Pretty early in playing while writing this review, but so far I do quite enjoy it. A lot of mechanics and systems in and also out of combat feel familiar, often like a mashup of various other games I've played in past years, although I don't think that's a bad thing, as it makes for pretty fun and diverse gameplay from what I've seen as of yet.
8 people found this review helpful
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Miki Mikoto
October 26, 2025
I usually don't really write reviews, but this game is super satisfying. The card mechanics are super cool and you have to think of what to use to defeat enemies. Sure there are some modes available where the game CAN play for you if you just want to farm stuff, which is totally fine. artwork/visuals are stunning, slight grind which is giving a nice pace. Story if you're into that seems also kinda interesting or the setting in general. Overall I'm pretty satisfied so far.
7 people found this review helpful
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Content rating
USK: Ages 16+
Increased Incentives to Buy, Fantasy Violence, Sexual Innuendo
In-Game Purchases (Includes Random Items)
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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