Last updated on November 19th, 2025 at 06:54 pm
Chaos Zero Nightmare – Roleplaying Game Review
Chaos Zero Nightmare is a Roleplaying game from Smilegate Holdings, Inc., first launched in 21st October 2025.
It’s rated 12+ and currently has 9,441+ ratings on the App Store.
What Makes Chaos Zero Nightmare Stand Out
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
This Roleplaying game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, Chaos Zero Nightmare is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 12th November 2025
Recent improvements include:
Bug fixes and improvements
Download & Availability
Chaos Zero Nightmare is available through the official App Store for iOS devices.
Get Chaos Zero Nightmare on App Store
Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
THE GYAAAA- Ahem we mean the game play is cool and unique instead of normal games like picking a ability and having to wait to choose it again it depends on your AP and your strategy on having to win and thats one of the things we love about this game and also the gya-.
This game has a pretty unique setting. We actually enjoy the combat, compared to other gachas or card games. It doesnt feel like a grind. Also doesnt seem like you have to spend to enjoy it. Overall worth digging into.
Anime CHECK Graphics CHECK Gr8 Story CHECK Fan Service CHECK Bomb Music *CHECK PLAY THIS GAME.
This is one of our favorites games the animation is amazing with the cards we love it if you are think about downloading the game do it it is amazing and the characters are wonderful with the plot is very interesting it isnt to easy or too hard if we could change anything we would not we can not think of anything that this game hasnt cover with us download it NOW.
Slay the Spire mixed with Honkai Star Rail. A beautiful combination.
Best waifo game ever we had played so guys u wont regret downloading this game and playing and we want more waifos dev we just love this game.
Finally a good card roguelike rpg gacha.
CZN offers a in depth battle system with plenty of opportunities for character growth. The various options available for progression and deck building provides players countless hours of replay ability. The battles themselves are also challenging, and the rewards properly reflect the difficulty posed to the player. Character design is captivating and memorable (with a bit of fan service). Their personalities and interactions with the player also encourage continuous engagement. Combat animations are amazing and flashy. Makes players eager to try out new characters. Smilegate is also transparent and open about issues with the game. They are prompt about providing notifications for updates and issues. This gives players hope for the games longevity.
This has to be our favorite mobile game of all time. This game hits all our checkpoints and there is never a dull moment. If you like deck building with rng and building teams, this game is for you. The devs hit their mark with this one. Not a single negative from us.
Amazingly fun card style game like Slay the Spire. Not as hard but still quite entertaining. The animation is top notch.
Amazing game. 10/10. 5*. Best turn based game of 2025.
This game is actually peak, and no not the models. The story is amazing, and the effects are just crazy. We would genuinely watch the show if this game has one just because of how peak it would be. Props to this game for being absolute cinema, and thank you to them for giving us the add for it.
Incredible game. However, our 5 star rating is subject to go down if a few problems arent fixed. Im confident that most problems will be solved, so we wont go through all of them (translation issues, save data clarity, and others.) The first issue that really bothers us is the gacha. Last night, at the beginning of season 1, we sat ready towallet at our sidedrop up to $50 on some meaningful shop item. But when we realized it would take about $150 to guarantee Yuki dropping, it just felt like it was WAY too much. Think about it: we could purchase two brand new AAA $70 games for the price of 1 particular 5 star character. Its insane. The game feels like it wants you to either be a whale or free to play. There needs to be a middle class in this game. If we just want to drop $20-$50 then that should provide something more meaningful than getting us 1/4 of the way to a single character. If they fix that and the flatness of the story then Ill be satisfied. As far as the positives: the gameplay itself is fantastic. We love the variety. We love the Season 1 update so far. The characters are fun. Id like more developed relationships with the various characters. We really hope they keep with positives and improve the negativesotherwise our score is going to change.
Game is great, its different with the card turn based gameplay, its a F2P friendly. The only thing we hope they change is the amount of energy used for farming, lol we think energy is used up too fast (only a us problem we think), but all in all game is great its fun trying to build the best deck for each character.
Overall the game is very enjoyable. While you may find that some characters abilities and cards are a bit difficult to understand, the game is balanced well enough to the point where you can just stick with what you like, or what you know works! The story is also quite interesting, which is always good. 10/10 would recommend.
Combat is deep and has learning curves, characters are SO enjoyable, voice acting is on-point, and gacha currency and rates are relatively forgiving. Give it a shot, you wont regret it.
The story is a bit lack luster but the gameplay which arguably is the most important aspect of the game has been done so flawlessly it doesnt even matter to us at that point. It is essentially a strategy type horror theme deck builder with a vast variety of ways to play and team build. The gatcha elements dont even make or break the gameplay either. Every character is equally great if you give them all some effort. The edionons which are basically mote copies of a character also arent needed to enjoy the game as it is heavily centered around how you the player build up your teams through what is called chaos runs. Truly the best game gatcha game ive played. The story is getting an overhaul for those who are worried about that. But the additional story such as the one in the 1.1 update is supposedly good. We are looking forward to the new update which brings content on top on content. Thats it folks, Game on legends.
Slay the spire-esque gachacgame that doesnt really require you to pull multiple copies of a character to be competitive.
Best Game In The Store. Better on PC. Nobody paid us to write this.
Great music, great gameplay and visual style, good story.
Like slay the spire but with more build variety and no infinites.
So unique, includes a lot of different game genre features in it. Deck building, type advantage, turn based, dice roll for events. Gorgeous artwork and monster design is chefs kiss. Ive been listening in on some of the devs news, upcoming events and bugs being fixed. Im excited to see where this game goes.
To start off it has one of the best implemented card turn based combat Iv ever experienced. The level designs and rouge-like elements is really peak. The endless combinations and synergies with units are what makes the game all the better. The poor team gets bashed by their Korean players for the game not being gooner enough. Complains about how the MC is not the center of attention, which is nice for a change and not a run of the mill harem slop story. While we love the apology rewards they dish out, it also kinda leaves a little hole in our heart too. The only somewhat annoying side is the save data, theres been times we want to go back and get a few more cards to deck out our hand. Its intended but it would be nice to have consumables that could upgrade or give cards upgrades that could serve as a bonus drop from chaos.
But please do not do waifu game.
Honestly the main story isnt the greatest especially with all the controversy, but honestly the game shines with the amazing characters and gameplay. Absolutely addicting cannot stop playing.
Gonna be a short and sweet review. Love the game, has plenty of stuff to do even without stamina. Every single character is viable which is nice. They seem to be adding a lot of QoL improvements. The translation leaves a lot to be desired though. Heard theyre working on it however.
Absolutely phenomenal game, we began playing it as soon as it dropped while we were at work. The animations are top tier, which is expected of SG and what initially caught our attention years ago with Epic Seven. They nailed the art style, theme, character models, and most importantly the game play. It made us feel nostalgic like the first time we were introduced to MTG and while its not as complex (yet) its just as enthralling.
Ive been playing it since launch and its been great so far and we are excited to see wheee they take this in the future. They are generous with the free stuff as well and transparent about player concerns and direction of the game.
We have nothing negative about the gameplay, its our favourite RPG ive ever played. We also love the writing. Im very interested in the story which isnt something that happens often. THIS GAME IS ALSO EXTREMELY GENEROUS WITH REWARDS!!! Our ONLY problem is that the we cant choose the gender of the character we play. The mc is a man, which isnt ideal for us since im a woman- and ill admit the fanservicey bits make us pretty uncomfortable. Its obvious which characters ARE fan service and which arent. To the devs- PLEASE DONT CATER TO INSECURE MEN WHO CANT HANDLE CHARACTER INTERACTIONS!!! Character interactions are what make them feel human!! Having said that the fanservice isnt extreme which is why we still love this game and will continue playing it. We LOVE THIS GAME!!!!!! Would rate 5 stars but there is only one thing we didnt like would be even better if we can play as a female :(.
Overall the gameplay is fun and satisfying. However some things need to be fixed: 1. Localization leaves a lot to be desired 2. WE NEED MORE MATERIALS. In a game where character experimentation is half the fun, we shouldnt be afraid to pull new characters. Devs- this is good for you too.This is a game we would love to spend money on. More materials = More character pulls from us. 3. Yuki is underperforming as a 5-star unit and should probably be buffed. Im very disappointed since we intentionally saved pulls to pull for her AND invested a lot of resources, which as we said above are very scarce. Overall though, the game itself is excellent. This could be an all time favorite of ours (and something we spend money on consistently) if the devs fix some of the issues. That being said, theyve been very communicative so far, so we are optimistic. Everything else aside- this is a game worth playing.
We understand effort is put into the story and Im sure its fine. Im not here for it, just gameplay, and the longer we have to hold fast forward to get anywhere the less we want to play.
Pros: the turn based combat is fun. The Korean voice acting is solid. The character animations are pretty good for most of the cast. Cons: Stamina management is terrible. Grinding quests give out a modicum of rewards compared to staggering quantities characters demand once you get to level twenty and only increase further every ten levels. Equipment system that unlocks at level twenty is also lack luster and very resource heavy. Gacha is competitive and the grind is insufferable. Update 11-16-2025: Dropped the game at player level 47. Collecting artifacts, increasing player level to remove character level caps, constant dungeon farming to unlock cards as end game is not fun or engaging. Newest character (Yuki) is designed for players to have to get duplicates and she is still underwhelming. If others have fun great for them, but the endgame and character progression needs helps.
The chaos runs take far too long, the RNG of the runs, the RNG of getting cards, the extreme length of time it takes to complete chaos runs, how bad if feels for RNG to ruin a run before completion, RNG substats for gear that only adds another aftifical layer to add stats, the TERRIBLE auto battle, did we mention how long it takes to do runs? We know this is a Korean game, but man we just cant do it. We cant play another game like this, despite the good stuff.
Mala probabilidad de obtener personajes 5*, y necesitas 6 para mejorar 1 al mximo y el juego no te da tangas gemas de pago, tienes que meter plata, prefiero un juego donde pagar por skins que estar gastando miles para mejorar un personaje y necesitas varios. Adems el juego se basa en el modo chaos es puro rng, aadiendo el tener los personajes adecuados y chetados es muy mala combinacin. Grficamente esta guapo, pero estn empezando a sacar personajes para pajeros.
We really love the animation and the quality of the gameplay but the characters are SO needlessly sexual. Someone experiencing the worst trauma in their life does not need to be bowlegged and drooling. Its just annoying and distracted from the gameplay, which is why we ended up deleting the game.
The gameplay is fine kinda fun the story has potential but we can see if getting dragged down by the fan service all women want to get with the male self insert character and boring big titty anime girl so nothing special.
This game is absolutely incredible.
The game is really fun and well put together. We havent dove much into the story mode because it doesnt have English VA but the cut scenes and everything were actually done really well for the animations. Its very unique so far its great to be able to play with any characters you actually like and build teams without restrictions meadow.
Love the mechanics and the ability to freely have various play styles with the Zero System makes it super fun to replay. Ps. We love Kayron.
Ive played a lot of gacha games of different varieties but CZN is a fresh take on the genre. The card battling offers a new take on combat with multiple combinations to fit your play style. With in depth story and lore for very character and well done designs as well. We dont really look forward to coming back to just do dailys and then log off but this game has us playing for hours on end.
Ive been looking for a game to replace that one jjk game, this is it; this and hsr are our games of the year, since tribe nine is gone.
Really fun deck/card battler that is very F2P friendly! Highly recommended.
Can you give this game a chance please? Im asking you as a human being to experience this story and these characters. Im not even that far into the game but the story and the characters are so amazing and fully fleshed out. We just completed the Trauma Code mission with Haru. It had some of the craziest moments that we never thought we would see in a video game. This game is DARK. Its a post apocalyptic world where you literally live on a space ship because planets are uninhabitable and are swarming with eldritch abominations. This game is extremely charming with the character designs and the world is so unique that seeing these optimistic characters experience fear and hopelessness is genuinely nothing Ive seen from a game before. When Haru came back from that mission after sharing her trauma with the captain. Her last words were Im still trapped in that moment. CHILLS MAN.
It look like a Korean game call lobotomy corporation, the library.
Ive played 4 gatchas now and this one stands out as the best. The devs actually listen and communicate with us, the gameplay is fun, and the design is dark and cosmic horror focused. Excited to see how this game develops with time.
This game is the real deal, it has all the elements im looking for with the card elements, character building lvling. The ability to grind for f2p, its leagues above others im looking at you marvel mystic mayhem. Im just getting into it will adjust review if it was all smoke and mirrors.
This game is extremely fun, if kept up with our taste for peace and kind of reminds us of DND.
Chaos Zero Nightmare completely blew us away. From the moment you start, the atmosphere pulls you in the visuals, sound design, and pacing all work together to create a sense of intensity and mystery. The boss mechanics are challenging but fair, rewarding players who stay sharp and learn the patterns.
Chaos Zero Nightmare is a surprisingly addictive mix of gacha, card-building, and roguelite gameplay that really scratches the Slay the Spire itch. Pulling rare units is exciting, but building their card sets and discovering strong synergies is just as rewarding, giving constant dopamine hits on both ends. Its also refreshing to see devs who listen, communicate, and take accountability when issues come up. If they continue on this pathand eventually add multiplayer or even unit tradingthe future looks very bright for this game.
Amazing we love the gameplay and story.
User feedback from Apple App Store
App Details
- Version: 1.0.209
- Size: 127.85 MB
- iOS: 13.0 or later
- Languages: EN, JA, KO, ZH
- Content Advisory: Loot Boxes, Infrequent/Mild Horror/Fear Themes, Frequent/Intense Cartoon or Fantasy Violence
- Developer: Smilegate Holdings, Inc.
Last updated: 12th November 2025 | Genre: Roleplaying | Developer: Smilegate Holdings, Inc.