Chaos Zero Nightmare

In-app purchases
151K reviews
Content rating
Teen
1M+
Downloads
Content rating
Teen
Fantasy violence, Mild blood, Suggestive themes
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
23 Sept 2026
Events and 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

142K reviews
Michael Lin
18 September 2026
Insanely well done visuals and good gameplay that does require engaging with the combat system. Still sad to see the gacha system implementation. Update: This game nerfs your gacha character post launch. Imagine you spent 3 months farming resources, or spent $100 dollars only to have that character be nerfed to the ground. What a waste of potential, beautiful art, and previously interesting gameplay. Smilegate, you ought to be ashamed of yourselves.
17 people found this review helpful
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Smilegate, Inc.
22 October 2025
Zero Out All Despair! This is Chaos Zero Nightmare. We’re working hard to grow into a better Chaos Zero Nightmare through constant improvement and positivity. Your support means everything to us, and we’ll continue striving to bring you even greater fun and excitement! ■ Official Community: https://page.onstove.com/chaoszeronightmare
Daniel Tye
7 September 2026
super good game, probably my favorite mobile game right now. gameplay is great, animations are fantastic, art direction is great, it's almost perfect. Only thing is once you've been playing for a while you kinda run out of things to do, and that's a little disappointing. hoping they add more game modes or long term challenges in the 1 year anniversary, but for now rating 4 stars.
2 people found this review helpful
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Ted Oyler
25 August 2026
I play a lot of mobile games, with some of them lasting in my games group longer than others. Sometimes my interest wanes or something else becomes the flavor of the week. Chaos Zero Nightmare is one of the few that has lasted because every time I log in there is new content, new characters, new battle mechanics. And while not all changes are permanent or as successful as you'd like them to be, the constancy and quality of the content shows the creators care about putting out an engaging game.
4 people found this review helpful
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Content rating
Teen
Fantasy violence, Mild blood, Suggestive themes
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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