Comparison

Devil Slayer vs Otherworld Mercenary Corps

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Spectacular action battles
  • Hack and slash combat
  • Idle character growth
  • Offline rewards
  • Diverse unlockable content
  • Giant boss battles
  • Acquire powerful equipment
Features
Read full description

● 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

About

Otherworld Mercenary Corps

Lead a mercenary corps in a fantasy world, battling demons and collecting powerful characters. Engage in strategic combat, explore diverse areas, and forge bonds with your team. Enjoy high-quality pixel graphics and vibrant character art.

Highlights
  • Mercenary commander gameplay
  • Demon King battles
  • Character collection
  • Story mode progression
  • Pixel graphics
  • Character relationship building
  • Competitive PvP battles
Features
Read full description

The knights are all here! Knights United Celebration is live! Start now and catch up in this otherworld idle RPG! New Commanders can earn up to 200,000 Diamonds! Starting fresh or returning? Enjoy generous rewards and power up your mercenary corps! --- Bless Terra, a blessed continent held captive by the Demon King. Follow the adventure of a hero summoned to another world who grows into the Commander of a Mercenary Corps. Search for the seven Primordial Cores scattered across the continent, recruit and develop a colorful cast of mercenaries, and build a Mercenary Corps of your own! Enjoy charming female character illustrations, high-quality pixel graphics, a wide range of strategic content, an immersive story, and the fun of collecting characters and items in Otherworld Mercenary Corps! --- ▣ Game Introduction ▣ Commander, the wait is over! A grand September celebration event is now underway. New Commanders can also receive rewards of up to 200,000 Diamonds! Whether you're starting fresh or coming back, now is the perfect time to jump in! ■ Idle Growth System ■ Your Mercenary Corps keeps growing even while you're busy. Earn rewards with short play sessions and strengthen your mercenaries and equipment. ■ Otherworld Adventure Story ■ Follow the adventure of a hero summoned to another world who grows into the Commander of a Mercenary Corps. Take on missions from Witch Queen Isabella and embark on a journey to find the seven Primordial Cores scattered across the continent. ■ Stages Where You Can Feel Your Progress ■ Explore a variety of areas based on your combat power! Also enjoy Story Mode, which follows the growth of the Mercenary Commander. ■ High-Quality Pixel Graphics ■ Cute and cool pixel characters take the stage! Experience the visual charm unique to pixel art and the fun of playing with it. ■ Vibrant Character Illustrations ■ Enjoy illustrations that bring out each character's unique charm, along with lively visuals that feel like 2D animation. ■ Relationships with Characters ■ Interact with your favorite characters and increase your combat power! To build strong relationships with characters of all kinds, carefully choose how you answer their questions. ■ Heated Competitive Content ■ Plan your strategy as you aim for higher rankings and more rewards! Strengthen your mercenaries, complete your own deck, and compete against other Commanders! --- ■ Official Community https://discord.gg/T4gQ3Fj8 --- E-mail: support@cryptect.co.kr Business Registration No.: 312-87-01164

Screenshots

Devil Slayer4 screens
Otherworld Mercenary Corps4 screens

Verdict

The call

The clearest difference is rating: Devil Slayer at 4.8 against Otherworld Mercenary Corps's 3.8. Devil Slayer also leads on review sentiment (71% vs 54%). Otherworld Mercenary Corps's advantage is update cadence (every 5 days vs every 3 weeks). On price, ratings volume, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Devil Slayer sells 20 one-off in-app purchases and Otherworld Mercenary Corps sells 72 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Devil Slayer holds the better App Store score, 4.8 against 3.8. Both are backed by a comparable volume of ratings — 47 and 42 respectively. Written reviews point the same way: 71% of Devil Slayer's written reviews are positive against 54% of Otherworld Mercenary Corps's.

UpkeepUpdate frequency

Devil Slayer ships an update every 3 weeks, Otherworld Mercenary Corps every 5 days. Both last shipped on October 27, 2026.

Scorecard3 real differences · 7 level
Devil Slayer versus Otherworld Mercenary Corps: the parameters behind the verdict, then further details
ParameterDevil SlayerOtherworld Mercenary Corps
PriceFreeFree
Rating4.8 (47 ratings) — better3.8 (42 ratings)
Positive reviews71.4% of reviews — better54.4% of reviews
Number of ratings47 — better42
Update frequencyEvery 3 weeksEvery 5 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size653 MB651 MB
Age rating12+12+
DeveloperYoungdal KimCryptect Inc.

Customer experience

Devil Slayer

All ratings47 ratings
Positive95.7%
Neutral0.0%
Negative4.3%
Written reviews21 reviews
Positive71.4%
Neutral9.5%
Negative19.0%

Otherworld Mercenary Corps

All ratings42 ratings
Positive69.0%
Neutral4.8%
Negative26.2%
Written reviews114 reviews
Positive54.4%
Neutral4.4%
Negative41.2%

Bugs and requests

Devil Slayer

Not enough reviews yet to summarise bugs or requests.

Otherworld Mercenary Corps

Reported bugs

3 issues
  • Constant crashing and force-closing on iOS
  • Downloading resources getting stuck at certain percentages
  • Summon screen freezing and becoming unresponsive

Requested features

3 requests
  • Improved optimization for iOS devices
  • Reduced frequency of crashes and freezes
  • More balanced gacha/summoning system

In-app purchases

20 purchases

Devil Slayer

One-time20
  • Guildjoin Unlock$0.99
  • Patiencebox 01$0.99
  • Start Package 01$1.99
Show 17 more
  • 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
72 purchases

Otherworld Mercenary Corps

One-time72
  • Kaye Special PKG$0.49
  • M.C. Bronze T1 Ach Celeb PKG$0.49
  • Beginner PKG$0.49
Show 69 more
  • V.V N Ch CLR Celeb PKG$0.49
  • Stage 1 Serina PKG$0.49
  • Demon Realm Conquest Gift Box$0.49
  • Mercenary Corps Package 01$0.99
  • September Event Gift Box$0.99
  • Season 1 End Celb Gift Box$0.99
  • Mercenary Corps Package 03$1.99
  • Stage 2 Ella PKG$1.99
  • Relic Summon Pass (1)$1.99
  • Character Pickup Pass (1)$1.99
  • Creature Summon Pass (1)$1.99
  • M.C. LvUp Pass (1)$1.99
  • Weapon Summon Pass (1)$1.99
  • Chara Summon Pass (1)$1.99
  • V.O N Ch CLR Celeb PKG$1.99
  • DEF Gear Summon Pass (1)$1.99
  • WL N2 variants$1.99
  • Novice Limited Package$1.99
  • Stage 3 Tanya PKG$2.99
  • Intermediate Limited Package$2.99
  • Season Check-in Pass$2.99
  • Mercenary Corps Package 04$3.99
  • T.R N Ch CLR Celeb PKG$3.99
  • Tower of Infinity Pass$3.99
  • Stage 4 Daphne PKG$4.99
  • Mercenary Corps Package 05$5.99
  • Chara Summon PKG$5.99
  • Skin Summon PKG$5.99
  • Season Check-in Pass$6.99
  • Apprentice Exclusive Package 2$6.99
  • The G.B N Ch CLR Celeb PKG$6.99
  • Daily New Benefit Summ. PKG$6.99
  • Stage 5 Lydia PKG$6.99
  • Ad Removal PKG$6.99
  • Daily Exploration Ticket PKG$6.99
  • Relic Summon PKG$6.99
  • Weapon Summon PKG$6.99
  • Mercenary Corps Package 08$7.99
  • New Commander Exclusive Pass$7.99
  • WL H2 variants$7.99
  • Commander Ring Pass (2)$7.99
  • Adventurer PKG$7.99
  • Relic Summon Pass (2)$7.99
  • M.C. LvUp Pass (2)$7.99
  • Weapon Summon Pass (2)$7.99
  • DEF Gear Summon Pass (2)$7.99
  • Black Friday Celeb Pkg 1$7.99
  • Launch Event PKG$7.99
  • Deluxe Limited Package$7.99
  • Novice Trans Stone PKG$7.99
  • Mercenary Corps Package 11$14.99
  • Ema's 1st Break Celeb PKG$14.99
  • WL Hell2 variants$14.99
  • Trial Ticket Random Box Package$19.99
  • Apprentice Exclusive Package 3$19.99
  • Ht Dl Dia PKGIntm$19.99
  • Mercenary Corps Package 14$22.99
  • Mercenary Corps Package 13$22.99
  • 2.5Anniv Pkg 2$22.99
  • Season 1 End Celebration Pass$22.99
  • New Char. Celebration PKG 2$22.99
  • 1st Anniv. Celeb. Pass$22.99
  • Interm Light's Soul Scrl PKG$22.99
  • 1st L Chara Acq. Celeb PKG$22.99
  • Polluted Area H$39.99
  • Dia PKG 2$39.99
  • Radiant Trial Ticket Random Box PKG$69.99
  • Mercenary Corps Package 21$79.99
  • Polluted Area NM$79.99

Questions

Is Devil Slayer free?
Devil Slayer is free to download, with in-app purchases available.
Is Otherworld Mercenary Corps free?
Otherworld Mercenary Corps is free to download, with in-app purchases available.
Which has better reviews, Devil Slayer or Otherworld Mercenary Corps?
Devil Slayer is rated higher. Devil Slayer averages 4.8 out of 5 from 47 ratings, while Otherworld Mercenary Corps averages 3.8 from 42 ratings.
Do Devil Slayer or Otherworld Mercenary Corps have ads?
Both Devil Slayer and Otherworld Mercenary Corps show ads.
Which is updated more often, Devil Slayer or Otherworld Mercenary Corps?
Devil Slayer ships an update every 3 weeks, and Otherworld Mercenary Corps every 5 days. Most recently, Devil Slayer was updated on October 27, 2026 and Otherworld Mercenary Corps on October 27, 2026.

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