Slayin vs Kaiju Attack
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Slayin
Embark on an endless action RPG adventure with charming retro graphics and a captivating chiptune soundtrack. Choose from multiple heroes, battle monsters, and collect powerful gear and spells. Be warned, death is permanent in this challenging and rewarding quest to become a true hero.
- Endless action RPG gameplay
- Multiple playable classes
- Monster and boss battles
- Loot collection (weapons, armor, spells)
- Challenging quests
- Retro pixel graphics
- Chiptune soundtrack
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PREPARE FOR THE WORLD’S FIRST ENDLESS ACTION RPG Slayin will test your skills like no other endless game on the App Store. Don’t get yourself fooled by its charming retro graphics and motivating chiptune soundtrack. In this game, death lurks behind every corner! Your task sounds all so simple. First choose from one of three heroes: knight, wizard and knave. Then slay as many monsters as possible, while leveling up and getting more powerful equipment and spells along the way. But there’s a catch: once you die, you’re gone for good! On your journey you will travel through numerous locations and encounter dozens of different monsters and fearsome bosses. Eventually, you will even have to face the giant dragon of legend. But he will not part with his treasure easily. Only the most worthy adventurers will be able to complete this task and become a true hero. Get ready for some slayin! • World’s first endless action RPG • Challenging and rewarding • Pixel perfect retro graphics • Chiptune soundtrack by Matt Creamer (Retro City Rampage) • 6 unique playable classes: knight, wizard, knave, archer, tamer and ninja • Endless loot: tons of weapons, armor and spells • Face legendary monsters and bosses • More than a hundred challenging quests to master • 3 unique game modes • Compete with your friends on Game Center
Kaiju Attack
Lead a united force as commander to defeat monstrous Kaiju threatening the world. Engage in strategic puzzle-based combat, unlock powerful secret weapons, and save eight countries to gain their unique abilities.
- Strategy game with puzzle elements
- Save eight countries and unlock abilities
- Unlock eight secret weapons
- Challenge ten Kaiju
- Unlock Kaiju Gallery
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Kaiju appeared and the world is in danger. You are the commander and need to lead a united force to defeat the Kaiju! Features - Strategy game with puzzle elements - Save eight countries and unlock their abilities - Unlock eight secret weapon such as Frozen Tank, Rail Gun… - Ten Kaiju waiting for your challenge - Unlock Kaiju Gallery to know their story and weakness
Screenshots
Verdict
The clearest difference is in-app purchases: Kaiju Attack at none against Slayin's 3. Slayin's advantage is ratings volume (3.1K vs 444) and price ($0.99 vs $2.99). On rating, review sentiment, update cadence and ads 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
Slayin costs $0.99 and Kaiju Attack $2.99 up front. Slayin sells 3 one-off in-app purchases. Kaiju Attack asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.7 for Slayin against 4.6 for Kaiju Attack. That said, the two scores are not equally well evidenced: Slayin has 3.1K ratings behind it against 444, so its average is the more settled of the two. Written reviews are what separate them: 89% of Slayin's written reviews are positive against 91% of Kaiju Attack's.
Slayin ships an update every 10 months, Kaiju Attack every 5 months. Both last shipped on October 18, 2026.
| Parameter | Slayin | Kaiju Attack |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 4.7 (3.1K ratings) — better | 4.6 (444 ratings) |
| Positive reviews | 89.4% of reviews | 90.5% of reviews — better |
| Number of ratings | 3.1K — better | 444 |
| Update frequency | Every 10 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #101 — better | #159 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 21 MB | 103 MB |
| Age rating | 12+ | 4+ |
| Developer | FDG Entertainment GmbH & Co.KG | Game Stew |
Customer experience
Slayin
Kaiju Attack
User reviews
Slayin
From 3.1K App Store ratingsWhat we love
- 💎 Perfect game
- 🎮 Fun and addictive gameplay
- 🕹️ Retro and nostalgic feel
- 💰 Great value for money
- 🕰️ Timeless classic
Room to improve
- 🐛 Crashes and compatibility issues
- 🔧 Needs updates for newer devices
- 💰 Grindy progression system
- 🕹️ Repetitive gameplay
Kaiju Attack
From 444 App Store ratingsWhat we love
- 👍 Clever and unique gameplay
- 🕹️ Satisfying merging mechanics
- 💎 Good value for money
- 🎨 Charming retro aesthetics
- 🕰️ Engaging time-killer game
Room to improve
- 🤔 Unclear tutorial/onboarding
- ⏱️ Slow pacing and animations
- 🔀 Randomness can feel unfair
- 🔁 Repetitive gameplay after a while
Bugs and requests
Slayin
Reported bugs
4 issues- Ninja character invisibility bug
- Archer character issues
- Game not loading on some devices
- Sound issues
Requested features
4 requests- Multiplayer mode
- More characters and content
- Fullscreen mode for modern devices
- Save/load progress across devices
Kaiju Attack
Reported bugs
2 issues- Occasional crashes on certain devices
- Compatibility issues on older devices
Requested features
4 requests- More enemy/monster variety
- Additional game modes or challenges
- Ability to speed up animations
- More detailed progression system
In-app purchases
Slayin
- Bard's Poem$0.99
- Bard's Sonnet$2.99
- Bard's Epic$5.99
Kaiju Attack
No in-app purchases
