# Chaos Zero Nightmare — A Chaos-Loop RPG Led by Choice

> Dark fantasy RPG with choice-driven narrative, unique card combat, and evolving gameplay. (iPhone/iPad app by Smilegate, Inc..)

- Source: https://appshunter.io/ios/app/chaos-zero-nightmare/id6502326151 (this page in markdown: same URL + `.md`)
- Developer: [Smilegate, Inc.](https://appshunter.io/developer/588277915)
- Category: Games, Role Playing
- Price: Free with in-app purchases
- Rating: 4.90/5 from 14,477 App Store ratings · 924 written reviews indexed
- Age rating: 12+
- Requires: iOS 15.0 · 112 MB
- Languages: American English, Japanese, Korean, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2025-10-21
- Data updated: 2026-08-29
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/chaos-zero-nightmare/id6502326151/reviews.md

## What is Chaos Zero Nightmare?

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.
"Chaos," a black fog that consumes planets, distorting their environment and lifeforms.
The beginning, or the end, of every story.
[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 turn off them as follows.
- Device Settings > Privacy & Security > Select the App > Allow or Don't Allow Permissions


⁜⁜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

## Key features

- Dark fantasy narrative
- Choice-driven RPG mechanics
- Unique card-based combat
- Evolving gameplay with branching choices
- Gorgeous 2D illustrations
- Fully voiced characters

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Special Data | $9.99 | one-time |
| Zero Data | $19.99 | one-time |
| Covert Exchange I | $14.99 | one-time |
| Covert Exchange II | $49.99 | one-time |
| Covert Exchange Ⅲ | $99.99 | one-time |
| Crimson Yearning Within the Waves | $7.99 | one-time |
| Scent of Summer I | $14.99 | one-time |
| Scent of Summer II | $49.99 | one-time |
| Scent of Summer III | $99.99 | one-time |
| Youth Under the Sun | $7.99 | one-time |
| Special Data | $9.99 | one-time |
| Zero Data | $19.99 | one-time |
| Legacy of Will I | $14.99 | one-time |
| Legacy of Will II | $49.99 | one-time |
| Crystal ×1980 | $29.99 | one-time |
| Galaxy Melody I | $14.99 | one-time |
| Galaxy Melody Ⅱ | $49.99 | one-time |
| Galaxy Melody Ⅲ | $99.99 | one-time |
| Emergency Rescue Operation II | $14.99 | one-time |
| New Captain Support Kit II | $4.99 | one-time |


## Chart rankings

- #154 in Top Free · Role Playing (US App Store)
- #80 in Top Grossing · Role Playing (US App Store)

## What do users think of Chaos Zero Nightmare?

Overall sentiment: positive

**Pros**

- 🚀 Amazing, Incredible, Gorgeous, Uniquely Compelling
- 👍 Fun, Refreshing, Engaging Gameplay
- 💎 Solid Story, Animation, and Voice Acting
- 🎨 Beautiful Character Designs and Visuals

**Cons**

- 🐛 Connection Issues, Login Problems, and Crashes
- 💰 Gacha Rates are Low, Grindy Progression
- ⏱️ Lengthy, Tedious, and Time-Consuming Runs

**Commonly reported bugs**

- Banned IP Issues
- Missing Files and Inability to Load

**Most requested features**

- English Dubbed Version
- More Male Characters
- Flexible Character Setup

## Recent user reviews (10 of 924)

All indexed reviews: https://appshunter.io/ios/app/chaos-zero-nightmare/id6502326151/reviews.md

### 3/5 — Unable to play

*2026-08-27, version 1.0.450*

Great game but unable to get past loading screen goes black

### 4/5 — It‘s great, but it could be so much better

*2026-08-26, version 1.0.450*

Firstly, the rogue-like horror story aspect of this game is phenomenal. The combat system, even more than that, is its greatest strength. It’s what differentiates this gacha game from most of the others with the way it’s done; it’s very interactive, strategic, and aesthetically pleasing. There’s a lot of uniqueness this game provides that makes it one of the most unique in its own right, like the trauma system.

However, even though revealing clothes is very common for female characters in gacha games, it’s just off-putting in a game like this that’s supposed to be more serious. More despairing, and more ambitious. The storyline was fantastic, especially at the beginning when you’re first starting. But as time went on, and especially in present times with more provocative female characters… it’s not working out. Do you know how amazing it would be if the storyline got even darker, and if new characters being released had more personality, story, and goal than just their bodies being revealing at every movement? This game would skyrocket in value. It’s that good otherwise.

Please. PLEASE don’t forget the potential this game has beyond typical gacha objectifying women. Please.

### 5/5 — Chaos Rewards Hero

*2026-08-24, version 1.0.450*

This game has so much going on. At first the learning curve is pretty extreme with all the upgradable stats and multiple menu screens. Thankfully there are tutorials to guide you through the options and a helpful Help section that covers all the details you may have missed. As far story goes it’s fair but there is a lot of voice acting that makes the quality of the overall game pretty expressive. Character design is rather “ecchi” and if you know what that means you probably are already playing the game. 

All in all the game is fun to play with generous rewards, seasonal events, plenty of combat engagements to test out your teams and robust in the customization for skill progression and characters galore.

### 5/5 — Jiggle physics

*2026-08-24, version 1.0.450*

I haven’t played the game yet but the red hair girl god jiggle physics 🤤🤤🤤

### 1/5 — Just short of p*rn

*2026-08-23, version 1.0.450*

It was a promising lovecraftian horror roguelike akin to Slay the Spire. The Korean fanbase was upset another male character got more female attention, so the devs responded and now only the protagonist can have any kind of relationship with anyone. So one guy, a room of mostly women and some men facing horrors, seeking comfort. The gameplay felt unique but not the kind of game I’d want to play in the breakroom.

### 5/5 — Definitely a must play

*2026-08-21, version 1.0.450*

I have played since launch and it has been nothing but good content since its release. The dev team listens to feedback, and corrects any problems we have in a very short amount of time! They are extremely generous in terms of rewards, and each update brings something fresh and new to the rogue like horror experience.

### 1/5 — Cannot load game

*2026-08-20, version 1.0.450*

I started playing the game a few weeks ago. While the game has been a lot of fun and I was looking forward to the second part of the new story, I am unable to load the as of today. I always get the “patching” screen and after any period of time (3-30 minutes) there is no change. Is there an issue? Are there any fixes that I may try on my end (I have found none)?

### 5/5 — Arguably an underrated asf game

*2026-08-19, version 1.0.307*

My first gatcha that i got really into

### 5/5 — Amazing game, would recommend if I could recommend

*2026-08-19, version 1.0.307*

I love card rouge likes, this to me is like the ideal of what a card rouge like should play as. They took the traditional formula and then added to it and elaborated to it in extremely creative and intuitive ways. This by far is an amazing rouge like I hope many take inspiration from in the future to its approach in deck building and character customization. The thing is the character designs themselves. I love them, they are really hot but can I go up to someone looking for rouge like recommendations and drop this without looking like an extreme pervert, no no I can’t. Which sucks sometimes because genuinely I love this game so much but also it really is hot wish I could randomly drop it as a recommendation though without looking like a perv.

### 5/5 — Wanted Sexy Girls, Received Peak

*2026-08-17, version 1.0.307*

As the title of this review suggests, I saw the trailer and was immediately… intrigued. I downloaded the game, played it, and was only drawn in by the opening sequence; I wanted sexy girls.

But then as I got into the gameplay and story, I stopped about thinking of the girls—though they were still super sexy. The card combat is fun and well-executed, with good mechanics and great presentation.

This was, of course, an unserious review—this is a great game, and I see why it holds a 4.9/5. Well done.

## Frequently asked questions about Chaos Zero Nightmare

### What kind of game is Chaos Zero Nightmare?

Chaos Zero Nightmare is a dark fantasy role-playing game (RPG) where player choices significantly impact the story and gameplay. It features a unique card-based combat system and a narrative driven by a cosmic disaster.

### What are the key gameplay mechanics?

The game emphasizes player choice, with branching decisions that shape the narrative and evolving 'Save Data'. Combat is strategic, utilizing unique cards and allowing players to build their own approaches to the ever-changing battlefield.

### Is Chaos Zero Nightmare free to play?

The game is free to download and play, but it does offer in-app purchases. This means you can enjoy the core experience without spending money, with optional purchases available for additional content or advantages.

### What makes the story and characters stand out?

The game presents a vast and haunting dark fantasy narrative set against a cosmic crisis. It features gorgeous 2D illustrations, striking animations, and is fully voiced by top-tier actors, creating a visually and audibly immersive experience with memorable characters.

### How does the choice system work in the game?

Every run in Chaos Zero Nightmare is designed to be unique due to the branching choices players make. These decisions influence the narrative, character development, and the overall journey through the game's world, allowing for a personalized experience.

## Version history (last 5 releases)

### 1.0.450 — 2026-08-19

Bug fixes and improvements

### 1.0.307 — 2026-07-29

Bug fixes and improvements

### 1.0.303 — 2026-07-08

Bug fixes and improvements

### 1.0.294 — 2026-06-17

Bug fixes and improvements

### 1.0.289 — 2026-06-01

Bug fixes and improvements

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All apps by Smilegate, Inc.: https://appshunter.io/developer/588277915

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*