Report updated May 7, 2026

TL;DR:The Seven Deadly Sins: Grand Cross defends its category position through high-fidelity 3D anime adaptation and a complex skill-card combat loop, but its reliance on aggressive gacha-based monetization creates a persistent churn risk among non-paying players. Users feel Frustrated, praising accurate anime story adaptation keeps long-term fans engaged with the core narrative experience but frustrated by aggressive pay-to-win mechanics in pvp matchmaking alienate players who lack the latest meta characters. The app retains fans through narrative fidelity but risks long-term churn due to technical instability and aggressive monetization, so the PM must prioritize Android stability and F2P economy rebalancing to stabilize the user base..|TL;DR:The Seven Deadly Sins: Grand Cross defends its category position through high-fidelity 3D anime adaptation and a complex skill-card combat loop, but its reliance on aggressive gacha-based monetization creates a persistent churn risk among non-paying players. Users feel Frustrated, praising accurate anime story adaptation keeps long-term fans engaged with the core narrative experience but frustrated by aggressive pay-to-win mechanics in pvp matchmaking alienate players who lack the latest meta characters. The app retains fans through narrative fidelity but risks long-term churn due to technical instability and aggressive monetization, so the PM must prioritize Android stability and F2P economy rebalancing to stabilize the user base..

The Seven Deadly Sins is a challenged games app that is free with in-app purchases. With a 4.3/5 rating from 794.8K reviews, it faces significant user friction. Users particularly appreciate accurate anime story adaptation keeps long-term fans engaged with the core narrative experience, though aggressive pay-to-win mechanics in pvp matchmaking alienate players who lack the latest meta characters remains a common concern.

What is The Seven Deadly Sins?

The Seven Deadly Sins: Grand Cross is a turn-based anime RPG for iOS and Android, structured around card-based combat and character collection.

Users hire the app to relive the anime narrative in a high-fidelity 3D format, using the combat system to progress through original and exclusive story arcs.

Current Momentum

v2.102 · today

Active
  • Added SSR Princess Tioreh character.
  • Launched 7th Anniversary Cheering Cake Event.
  • Added LR Evolution for Captain Hawk.
AI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

Active Nemesis

Epic Seven

Epic Seven

By Smilegate

Other Rivals

Fire Emblem Heroes
Fate/Grand Order (English)
Genshin Impact
Honkai: Star Rail
Yu-Gi-Oh! Duel Links
GODDESS OF VICTORY: NIKKE
Zenless Zone Zero

7-Day Rank Pulse 🇺🇸

Games

No ranking data

Rating Pulse 🇺🇸

Recent User MoodAI-powered deep analysis surfacing high-signal insights. Still in beta, accuracy improves daily. For informational purposes only.

What makes this app unique?

What Does It Look Like?

How Is The App's Momentum Right Now?

Loading...

What Are The Key Features?

Strategic Skill Card Battle SystemDifferentiator

Combines skill cards of the same rank to increase card power and trigger Ultimate Moves during turn-based combat.

Game-Exclusive OutfitsDifferentiator

Customizable cosmetic looks for characters that are not present in the original anime source material.

Real-time Death MatchesStandard

Cooperative multiplayer mode requiring real-time coordination with friends to clear boss encounters.

How much does it cost?

Freemium
  • Free-to-play with optional in-app purchases
  • In-app purchases for currency, outfits, and character draws

Monetization relies on a gacha-based model where revenue is generated through character acquisition and cosmetic customization.

Who Built It?

Netmarble Corporation app icon 1
Netmarble Corporation app icon 2
Netmarble Corporation app icon 3
Netmarble Corporation app icon 4

Netmarble

(3.9M)

Delivering high-fidelity action RPGs and immersive open-world experiences based on globally recognized entertainment franchises.

Portfolio

13

Apps

Free 12
Games42%
게임33%
ゲーム25%

Who is Netmarble?

Netmarble has carved out a distinct position as a specialist in high-fidelity mobile adaptations of global entertainment IPs, effectively leveraging established fanbases to mitigate user acquisition risks. Their moat is a sophisticated live-ops infrastructure capable of sustaining decade-long lifecycles for complex action-RPGs, which is rare in the mobile-first market. A key strategic signal is their recent diversification into the 'Idle RPG' sub-category, porting core franchises to lower-friction formats to capture a broader audience segment.

Who is Netmarble for?

  • Fans of anime
  • Manga
  • Superhero IPs seeking console-quality action
  • Deep character progression on mobile devices
Intense

Portfolio momentum

With 105 releases in the last 6 months and 95% of the portfolio currently active, the publisher maintains an exceptionally high development and live-ops cadence.

Last release · 12d agoActive apps · 19Abandoned · 1

What other apps does Netmarble make?

MARVEL Future Fight

MARVEL Future Fight

Games·4.1(3M)
View Intel →
Solo Leveling:Arise

Solo Leveling:Arise

Games·3.9(713.2K)
View Intel →
StoneAge: Idle Adventure

StoneAge: Idle Adventure

Games·4.4(37K)
View Intel →
リネージュ2 レボリューション

リネージュ2 レボリューション

ゲーム
RF 온라인 넥스트

RF 온라인 넥스트

게임
ゲーム・オブ・スローンズ:キングスロード

ゲーム・オブ・スローンズ:キングスロード

ゲーム

What do users think recently?

High confidence · Latest 100 of 107 total reviews analyzed · Based on 107 reviews. Signal may be noisy.

How did the latest release land?

Overall
4.3/ 5
(794.8K)
Current version
4.7/ 5
+0.4 vs overall
(143.9K)
Main signal post-update: accurate anime story adaptation keeps long-term fans engaged with the core narrative experience.

What is the recent mood?

Frustrated

Recent user voice shows a frustrated sentiment. Users appreciate accurate anime story adaptation keeps long-term fans engaged with the core narrative experience, but report aggressive pay-to-win mechanics in pvp matchmaking alienate players who lack the latest meta characters and technical instability including frequent crashes and loading loops disrupts the core gameplay experience.

What Users Love

Accurate anime story adaptation keeps long-term fans engaged with the core narrative experience

What Frustrates Users

Aggressive pay-to-win mechanics in PvP matchmaking alienate players who lack the latest meta characters
Technical instability including frequent crashes and loading loops disrupts the core gameplay experience

What Users Want

Account recovery and cloud sync improvements are needed to prevent permanent loss of progress

What is the competitive landscape for The Seven Deadly Sins?

How's The Games Market?

How does it evolve in the Games market?

The app maintains a presence in the US Grossing charts, though rank volatility suggests sensitivity to banner performance. The gap between its discovery advantage and revenue retention signals a need to rebalance the F2P progression path.

ChartRankChange
iOSGrossing#3615
iOSFree#6820

The rivals identified

The Nemesis

Head to Head

The target app must leverage its IP strength to retain casuals while introducing deeper tactical depth to compete with Epic Seven's retention-heavy gear systems.

What sets The Seven Deadly Sins apart

  • Leverages a globally recognized anime IP to drive organic acquisition and lower user acquisition costs.

  • Offers a more accessible entry point for casual fans of the source material compared to original IPs.

What's Epic Seven's Edge

  • Provides a more complex and rewarding end-game gear optimization system for dedicated competitive players.

  • Delivers a more cohesive artistic style through consistent 2D animation rather than mixed 3D assets.

Contenders

Utilizes a simplified grid-based tactical combat system optimized for short, mobile-first play sessions.

Integrates a massive library of legacy characters from a long-running console franchise to drive engagement.

Fate/Grand Order (English)

Fate/Grand Order (English)

4.0 (107K)

Aniplex Inc.

A direct competitor in the anime-based turn-based RPG space with a massive, loyal fanbase.

Relies on a narrative-first experience that prioritizes visual novel storytelling over complex combat mechanics.

Maintains a massive, multi-year content backlog that provides a deep, evergreen experience for new players.

Peers

Features a massive open-world exploration model that contrasts with the target app's session-based combat structure.

Employs a real-time action combat system that appeals to a broader, more active gaming demographic.

Delivers cinematic, high-budget turn-based combat animations that set a new industry standard for the genre.

Integrates deep, interconnected world-building that encourages long-term player investment in the game's lore.

Focuses on competitive PvP card mechanics rather than the character-collection RPG loop of the target.

Leverages a decades-old established rule set to maintain a highly dedicated and predictable player base.

New Kids on the Block

Uses a unique cover-based shooting mechanic that differentiates it from traditional turn-based RPGs.

Aggressively utilizes high-quality character design and live-service events to drive rapid player acquisition.

Features a highly stylized, urban-fantasy aesthetic that breaks away from traditional high-fantasy anime tropes.

Implements a fast-paced, combo-heavy action combat system designed to maximize player engagement per session.

The outtake for The Seven Deadly Sins

Strengths to defend, gaps to attack

Core Strengths

  • High-fidelity 3D anime visuals drive organic acquisition
  • Original story content provides a unique retention anchor

Critical Frictions

  • 0.49★ Android-iOS rating gap indicates technical instability
  • Aggressive PvP monetization creates high barrier to entry

Growth Levers

  • Expansion of cooperative social features could mitigate gacha reliance

Market Threats

  • High-budget turn-based RPGs set new production standards

What are the next best moves?

highPivot

Audit Android stability to close the 0.49★ rating gap because technical instability is a top complaint → improve retention

Android-iOS rating gap is a direct signal of platform-specific instability.

Trade-off: Delay the next cosmetic outfit release by two weeks to reallocate engineering hours.

highInvest

Rebalance F2P resource acquisition because PvP pay-to-win complaints are the #1 churn driver → increase long-term retention

PvP matchmaking complaints are the highest frequency negative sentiment theme.

Trade-off: Pause the development of new vanity outfits to focus on economy tuning.

A counter-intuitive read

The app's reliance on aggressive monetization is not just a revenue lever but a structural necessity to offset the high cost of maintaining 3D anime assets against lower-budget 2D competitors.

Feature Gaps vs Competitors

  • Deep gear-grinding progression system (available in Epic Seven but absent here)

Key Takeaways

The app retains fans through narrative fidelity but risks long-term churn due to technical instability and aggressive monetization, so the PM must prioritize Android stability and F2P economy rebalancing to stabilize the user base.

Where Is It Heading?

Declining

The turn-based RPG market is consolidating around high-production-value titles, leaving the app exposed to technical and economic fatigue. Unless the team addresses the Android stability gap and F2P progression friction, the current sentiment decline will continue to erode the player base through the next quarter.

Technical instability in the latest release (crashes, loading loops) erodes the daily active habit, which compounds the rating drag already visible on Android.

Aggressive PvP meta-creep forces spending, which accelerates churn among long-term players who cannot keep up with the latest festival character passives.

Disclosure

Independent intel to help builders create better apps.

AI-powered analysis with editorial review, built from publicly available sources. See methodology.

Marlvel.ai is not affiliated with, endorsed by, or sponsored by The Seven Deadly Sins, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Hope this helps & keep building! · Found an error?

What's new in this report

The report identifies a decline in user sentiment driven by technical instability and aggressive monetization, alongside a more rigorous competitive analysis of the turn-based RPG market.

declined

Sentiment and Stability

shifted

Market Outlook

improved

Skill Card Battle System Repositioning

added

New SWOT Weaknesses and Threats

Cite this report

Marlvel.ai. “The Seven Deadly Sins Intelligence Report.” Updated May 7, 2026. https://marlvel.ai/intel-report/games/com-netmarble-nanagb

Agent Markdown (.md)·

Data licensed under CC-BY-NC 4.0