StarSavior vs Chaos Zero Nightmare
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
StarSavior
Embark on a cosmic journey as a Captain, leading star-powered girls in a turn-based RPG. Train your team, forge bonds, and uncover a new story to inherit the legacy of a legendary hero. Experience visually stunning battles and an anime-inspired world.
- Lead star-powered girls
- Turn-based combat
- Cinematic skill animations
- Deep character bonds
- New cosmic story
- Anime-style illustrations
- 3D graphics
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Long ago, the legendary Star Savior defeated the Void Star. Now, the Journey—a trial to inherit the great power he left behind—begins once more. Take on the Journey alongside star-powered girls and inherit the legacy of the Star Savior. A training RPG to raise a new shining light to illuminate the cosmos in an age where the stars are fading. StarSavior: Guide your Saviors through the star-kissed Journey. ■ A Journey with girls who wield the power of the stars You become the Captain of the Savior Party, tasked with leading the star-powered girls known as Saviors. Forge bonds with star-powered Saviors and lead them through the Journey—to inherit the legacy of the Star Savior. ■ Turn-based battles with cinematic skill animations Each Savior possesses unique abilities and traits. Combine their distinct skills and attributes with stunning visual effects to build the optimal party, and overcome formidable enemies through turn-based combat guided by your strategy as Captain. ■ The legacy of the Star Savior — and a new story Follow in the footsteps of the Star Savior and uncover a new tale. Experience a story where past and future, fate and bonds, intertwine. ■ Anime-style illustrations and 3D graphics The world of StarSavior comes alive through anime-style illustrations, paired with 3D visuals rendered in a distinct aesthetic. ■ Official Community ▶ Official Hompage: https://starsavior.com/intro ▶ Official YouTube: https://www.youtube.com/@StarSavior_EN ▶ Official X: https://x.com/StarSavior_EN ■ Recommended Specifications iOS 15 / RAM 8GB or higher ■ Optional Permissions - Notifications: Required to receive promotional and informational notifications. - Photos/Media/Files: Required to save screenshots.
Chaos Zero Nightmare
Embark on a dark fantasy RPG adventure where your choices shape the narrative and gameplay. Battle cosmic horrors with unique cards and evolving strategies. Experience a visually stunning world with fully voiced characters.
- Dark fantasy narrative
- Choice-driven RPG mechanics
- Unique card-based combat
- Evolving gameplay with branching choices
- Gorgeous 2D illustrations
- Fully voiced characters
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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
Screenshots
Verdict
The clearest difference is ads: StarSavior at none against Chaos Zero Nightmare's shown. Chaos Zero Nightmare's advantage is rating (4.9 vs 4.5) and ratings volume (15K vs 680). On price, update cadence, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. StarSavior sells 47 one-off in-app purchases and Chaos Zero Nightmare sells 45 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Chaos Zero Nightmare holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Chaos Zero Nightmare has 15K ratings behind it against 680, so its average is the more settled of the two. Written reviews point the same way: 53% of StarSavior's written reviews are positive against 66% of Chaos Zero Nightmare's.
StarSavior ships an update fortnightly, Chaos Zero Nightmare every 3 weeks. Both last shipped on September 24, 2026.
| Parameter | StarSavior | Chaos Zero Nightmare |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (680 ratings) | 4.9 (15K ratings) — better |
| Positive reviews | 52.6% of reviews | 66.2% of reviews — better |
| Number of ratings | 680 | 15K — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #114 | #110 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 439 MB | 112 MB |
| Age rating | 12+ | 12+ |
| Developer | Studio B Side Co., Ltd | Smilegate, Inc. |
Customer experience
StarSavior
Chaos Zero Nightmare
Bugs and requests
StarSavior
Not enough reviews yet to summarise bugs or requests.
Chaos Zero Nightmare
Reported bugs
2 issues- Banned IP Issues
- Missing Files and Inability to Load
Requested features
3 requests- English Dubbed Version
- More Male Characters
- Flexible Character Setup
In-app purchases
StarSavior
- [Welcome] Savior Observation Pack$0.99
- [Welcome] Featured Observation Pack$0.99
- [Launch] Arcana Observation Pack$0.99
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- Daily Infrastructure Pack$0.99
- W.Liberator Observation Package I$1.99
- Candle Sqaure Observation Pack I$1.99
- May Bride Observation Package I$1.99
- May Bride Featured Observ Pac I$1.99
- Special Savior Level-Up Package$1.99
- Monastir Featured Observation Pac I$1.99
- Plus Level Up Package$1.99
- CounterSide Featured Observe Pack I2 variants$1.99
- Eastern Wind Observation Package I$1.99
- Daily Aether Dust Pack$1.99
- Plus Journey Package$2.99
- Daily Starlight Essence Package$3.99
- Daily Operation Report Package$3.99
- Daily Gold Package$3.99
- Daily Operation Report Support Pack$3.99
- 30-Day Stellagem Supply$4.99
- 30-Day Willpower Supply$4.99
- Daily Starlight Essence Sup. Pack$4.99
- House Stranis Observation Pack I$5.99
- CounterSide Feature Observe Pack II$5.99
- May Bride Observation Package II$5.99
- Monastir Featured Observ Pac II$5.99
- CounterSide Featured observe pac Ⅱ$5.99
- Paradise Festival Step up Step 2$7.99
- Half-Anniv Step Up Pac STEP 2$7.99
- [New Captain] Journey Support Pack$7.99
- House Stranis Observation pack II$9.99
- Candle Sqaure Observation Pack III$9.99
- CounterSide Featured observe pac Ⅲ$9.99
- [Rabbit] Arcana Growth Boost Pack$9.99
- Paradise Festival Step up Step 3$11.99
- Black Peal Trap Package$11.99
- Veiled in Violet Package$11.99
- Veiled Promise Package$11.99
- Lisette's Super Package$14.99
- Lisette First Buy Special Offer$14.99
- [New Captain] Savior Observe. Pack$14.99
- House Stranis Observation pack III$19.99
- Operation Breakthrough Pass Vol.1$19.99
- CounterSide Featured observe pac IV$19.99
- Scarlet's Super Package$21.99
- (First Purchase)Stellagem 1800+1800$29.99
- (First Purchase)Stellagem 4800+4800$79.99
Chaos Zero Nightmare
- New Captain Support Kit I$0.99
- New Captain Support Kit II$4.99
- Coronomicon Monthly Package$4.99
Show 42 moreShow fewer
- Half-Anniversary Ticket$4.99
- Tactical Asset Monthly Supply$4.99
- Agent Growth Kit$4.99
- Aether Supply Kit$4.99
- Gentle Ripples on the Night Sea$7.99
- Crimson Yearning Within the Waves$7.99
- Youth Under the Sun$7.99
- Special Data7 variants$9.99
- Partner Promotion Kit$9.99
- Imp's Mischief I$14.99
- Covert Exchange I$14.99
- Scent of Summer I$14.99
- Legacy of Will I$14.99
- Galaxy Melody I$14.99
- Emergency Rescue Operation II$14.99
- Crystal ×980$14.99
- Regular Rescue Operation II$14.99
- Golden Nebula Package I$14.99
- SS Nightmare Security Upgrade I$14.99
- Budding Seed of Karmic Fire I$14.99
- Zero Data6 variants$19.99
- Crystal ×1980$29.99
- Royal Level Up Package$29.99
- Golden Nebula Package II$29.99
- Sweet Confession Gift$29.99
- Galactic Disaster 3rd Supply Kit II$29.99
- Emergency Rescue Operation III$29.99
- Imp's Mischief II$49.99
- Covert Exchange II$49.99
- Scent of Summer II$49.99
- Legacy of Will II$49.99
- Galaxy Melody Ⅱ$49.99
- SS Nightmare Security Upgrade II$49.99
- Silver Winter Star Package I$49.99
- Galactic Disaster Support Kit I$49.99
- Large Scale Rescue Operation I$49.99
- Imp's Mischief III$99.99
- Covert Exchange Ⅲ$99.99
- Scent of Summer III$99.99
- Galaxy Melody Ⅲ$99.99
- Crystal ×6480$99.99
- Golden Nebula Package Ⅳ$99.99
Questions
Is StarSavior free?
Is Chaos Zero Nightmare free?
Which has better reviews, StarSavior or Chaos Zero Nightmare?
Do StarSavior or Chaos Zero Nightmare have ads?
Which is updated more often, StarSavior or Chaos Zero Nightmare?
Which is more popular, StarSavior or Chaos Zero Nightmare?
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