Chaos Zero Nightmare

In-app purchases
4.4
68.6K reviews
10L+
Downloads
Content rating
Rated for 12+
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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
Updated on
5 Nov 2025

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

4.3
64.7K reviews
Josh Chet
26 October 2025
You guys made such a damn good game! The dungeons are so fun, especially in Nightmare mode. Whoever came up with the epiphany system, give that person or team a raise. The fact that you can build your characters in so many ways, is just amazing. You had a few hiccups at launch, but you communicated and got them fixed. The game isn't easy, it's very challenging in a good and addicting way. Keep it up devs. 👏👏👏
247 people found this review helpful
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Emerson Dela Cruz
29 October 2025
I'm stuck in the loading screen, I've missed the login days, and days I could've grinded for the dailies. it always says patching, and nothing happens until it says error. I've emailed your team but instructed me to report to the page, but the page only caters to those playing on the PC client, well I am playing on Android how's that. please fix this, the game is fine and surprisingly good, but not letting me play is a big red flag. I'll reconsider my rating if you fixed this.
52 people found this review helpful
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Smilegate Holdings, Inc
10 November 2025
Zero Out All Despair! This is Chaos Zero Nightmare. we apologize for any inconvenience you may have experienced while accessing the game. Unfortunately, we are unable to provide support here. If you continue to experience issues, please contact customer service. ■ Customer Center: https://cs.onstove.com/en/service/STOVE_CHAOSZERO
jpm218
28 October 2025
I just did a Chaos run and didn't have the insanity mode on because the game auto turns it off after a run. If it was on, I could have possibly had a really fun build for a couple of my characters. And now I might not ever get the exact build I just had because of this. Please make it so it doesn't automatically turn off this mode in chaos! Or at least give a confirmation when starting a run to make sure you're in the right mode. (I'm so sad rn dude 🫠)
18 people found this review helpful
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