Castle Defense King vs Devil Slayer
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Castle Defense King
Build your defenses by reinforcing walls, soldiers, and heroes to withstand massive enemy waves. Utilize unique hero abilities and powerful spells like repair magic, magic bombs, and ice storms to overcome challenges. Compete globally for the highest wave clear.
- Reinforce walls, heroes, and soldiers
- Combine unique heroes
- Upgrade towers and magic
- Utilize repair, bomb, and ice storm spells
- Massive enemy waves
- Offline play supported
- Compete on global leaderboards
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Prepare endless enemy waves by reinforcing castles, heroes and soldiers! [Reinforcement tips] - Prepare your defense base by reinforce walls and soldiers first - Try to combine unique heroes - Finally, reinforce your tower and magic to challenge the conquer war - As higher tower level, stronger the magic. - There is a hero that uses the skill every time using magic. [Strategy Tips] It's easier to defend by using 3 kinds of spells Repair magic: Repairing the wall's health Magic Bomb: Dropping magic bombs to attack enemies Ice storm: Slowing down monsters that smash in blizzard - Massive enemy wave - Easy and simple strategy defense - Cute heroes and various monsters - Conquer war challenge to the limit - Compete against the players in the world with enemy wave clear - Free to Play - Supported offline game without WIFI - Supported Low spec devices - Supported Tablet devices - Supported achievements and leaderboard Facebook : https://www.facebook.com/mobirixplayen YouTube : https://www.youtube.com/user/mobirix1
Devil Slayer
Engage in spectacular hack and slash combat in this idle action RPG. Grow your character with idle rewards and offline earnings. Conquer bosses and acquire powerful equipment through diverse content and daily login bonuses.
- Spectacular action battles
- Hack and slash combat
- Idle character growth
- Offline rewards
- Diverse unlockable content
- Giant boss battles
- Acquire powerful equipment
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● Spectacular action! Experience eye-catching battles. - A next-level idle RPG with action - Hack and slash combat against swarming enemies - Grow your dazzling slayer day by day! ● Endless growth! Experience unceasing growth just by being idle. - Grow rapidly just with idle rewards! - Experience the fun of the constantly growing Devil Slayer every day. - Experience the magic of explosive growth just by receiving offline rewards. ● Diverse content! - Challenge the limits of your character and prove your strength! - Increase your growth rate by enjoying a variety of unlockable content! - Log in daily and get tons of rewards! Acquire the most powerful equipment in the universe! - Conquer mighty giant bosses and earn attractive rewards! ---------------------------------------------------------- Help : dudekf556@gmail.com
Screenshots
Verdict
The clearest difference is rating: Devil Slayer at 4.8 against Castle Defense King's 4.1. Devil Slayer also leads on review sentiment (71% vs 54%) and update cadence (every 3 weeks vs every 2 months). On price, ads, 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. Castle Defense King sells 6 one-off in-app purchases and Devil Slayer sells 20 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Devil Slayer holds the better App Store score, 4.8 against 4.1. Both are backed by a comparable volume of ratings — 11 and 47 respectively. Written reviews point the same way: 54% of Castle Defense King's written reviews are positive against 71% of Devil Slayer's.
Castle Defense King ships an update every 2 months, Devil Slayer every 3 weeks. The most recent releases landed on October 21, 2026 and October 13, 2026 respectively.
| Parameter | Castle Defense King | Devil Slayer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (11 ratings) | 4.8 (47 ratings) — better |
| Positive reviews | 53.8% of reviews | 71.4% of reviews — better |
| Number of ratings | 11 | 47 — better |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 60 MB | 653 MB |
| Age rating | 9+ | 12+ |
| Developer | MOBIRIX | Youngdal Kim |
Customer experience
Castle Defense King
Devil Slayer
In-app purchases
Castle Defense King
- Purchase 300 Ruby$2.99
- Purchase 550 Ruby$4.99
- Purchase 1200 Ruby$9.99
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- Purchase 3900 Ruby$29.99
- Purchase 7000 Ruby$49.99
- Purchase 17000 Ruby$99.99
Devil Slayer
- Guildjoin Unlock$0.99
- Patiencebox 01$0.99
- Start Package 01$1.99
Show 17 moreShow fewer
- Start Package 02$3.99
- Remove Ads$4.99
- Start Package PLUS$5.99
- WeeklyGrowth01$5.99
- Reset Pass$6.99
- hopepackage$6.99
- RotationPackage01$8.99
- Devilbox02$9.99
- Seeds of Happiness$9.99
- WeeklyGrowth02$12.99
- Bosspack01$12.99
- AchievePackage01$14.99
- Costume_Body 03$14.99
- Costume_Body 02$14.99
- RotationPackage02$19.99
- WeeklyGrowth03$29.99
- RotationPackage03$39.99
Questions
Is Castle Defense King free?
Is Devil Slayer free?
Which has better reviews, Castle Defense King or Devil Slayer?
Do Castle Defense King or Devil Slayer have ads?
Which is updated more often, Castle Defense King or Devil Slayer?
Other comparisons
