Report updated Jul 2, 2026
Fish Kingdoms：Idle Arena
For casual gamers who enjoy anime-style aesthetics, idle RPG mechanics, and light puzzle-solving elements without the pressure of intense grinding.
Fish Kingdoms：Idle Arena is an established games app that is free with in-app purchases. With a 4.8/5 rating from 2.6K reviews, it shows polarized user reception.
What is Fish Kingdoms：Idle Arena?
Fish Kingdoms: Idle Arena is a 3D idle RPG for casual gamers, featuring anime-style fish collection and arcade-style puzzle mechanics on iOS and Android.
Users hire the app for low-stakes, automated progression that allows for character growth during AFK periods without the pressure of intense grinding.
Current Momentum
v1.1
- Last major update October 2023.
- No new features added recently.
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Tactile puzzle mechanic where players move pipes to detach them from locks.
Frequent free chests and summons for Epic Finlords.
Automated resource collection and character growth while AFK.
How much does it cost?
- Free-to-play base game
- In-app purchases for resources and progression acceleration
Positions as non-pay-to-win, using free summons to lower entry barriers and encourage long-term retention.
Who Built It?
THE HORTOR TECHNOLOGY PTE
Providing casual mobile gaming experiences through idle RPG mechanics and merge-based puzzle gameplay.
Portfolio
4
Apps
What other apps does THE HORTOR TECHNOLOGY PTE make?
Explore the full THE HORTOR TECHNOLOGY PTE report
Portfolio breakdown, audience, momentum, and every app published by THE HORTOR TECHNOLOGY PTE.
What do users think recently?
Analysis in progress, available soon
How have ratings & review volume moved?
Rating, review sentiment, and total reviews over time, with release markers showing the post-launch impact.
Vertical markers = app releases. Hover any release for the post-release impact delta.
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
What is the competitive landscape for Fish Kingdoms：Idle Arena?
Where is it available?
Localized markets (1)
How's The Games Market?
Market outlook for this category
Available very soon
The rivals identified
Nemeses(1)
Both apps compete for the same idle-RPG player base by offering automated progression systems and hero collection mechanics.
Differentiators
- Features a complex mastery tree and synergy skill linking absent in Fish Kingdoms' simpler arcade loop.
- Utilizes a robust gem guardian raid system that drives long-term retention through social competitive play.
- Offers deeper character customization through rune enhancement, providing more strategic depth than basic chest-opening mechanics.
Head to head
Focus on doubling down on the unique 'arcade fishing' hook to differentiate from the saturated generic idle RPG market.
Contenders(2)
Competes for the same casual idle-gaming audience by utilizing similar progression-based mechanics and hero-collection loops.
Differentiators
- Implements a unique sword merging system that provides a more tactile progression feel than standard idle mechanics.
- Includes pet evolution systems that add a layer of collection depth missing from the current target app.
Targets the same idle RPG demographic with a focus on creature collection and automated progression.
Differentiators
- Focuses on creature taming mechanics which offer a different thematic hook compared to the fishing-centric gameplay.
- Provides a more traditional fantasy RPG aesthetic that contrasts with the arcade-style presentation of Fish Kingdoms.
Same space(4)
Shares the RPG category and utilizes innovative mechanics to drive engagement within the mobile gaming space.
Differentiators
- Integrates a barcode scanning engine that turns real-world objects into in-game assets, a highly unique engagement mechanic.
- Features real-time PvP arenas that provide a more intense competitive experience than the target's idle-focused gameplay.
Operates within the broader RPG ecosystem, focusing on the social and utility aspects of tabletop-style gaming.
Differentiators
- Provides an AI assistant for game masters, significantly reducing the administrative burden of running tabletop sessions.
- Offers dynamic battlemaps and no-code character builders that cater to the utility needs of serious RPG players.
Serves the same RPG-interested audience by providing essential character management tools for tabletop systems.
Differentiators
- Acts as a critical utility for tabletop players with deep damage calculation and character planning features.
- Offers PDF character sheet exports, providing a tangible bridge between digital planning and physical gameplay sessions.
Competes for the attention of RPG fans by offering a classic, high-quality real-time combat experience.
Differentiators
- Features a legendary real-time battle system and ring command menu that defines the classic action-RPG genre.
- Supports external controllers, providing a console-quality experience that mobile-first idle games cannot currently match.
New entrants(1)
A new entrant in the RPG space focusing on the utility and management side of tabletop gaming.
Differentiators
- Provides specialized encounter management and initiative tracking tools that streamline the flow of tabletop combat sessions.
Compare Fish Kingdoms：Idle Arena against every rival
All rivals in one side-by-side table — identity, store metrics, ratings & sentiment, and strategic intel — plus a head-to-head page for each.
The outtake for Fish Kingdoms：Idle Arena
Strengths to defend, gaps to attack
Core Strengths
- Tactile pipe-detachment puzzle provides a unique arcade hook
- Generous free-summon system lowers entry barriers
Critical Frictions
- Lack of deep progression systems limits retention
- No cloud-save functionality
Growth Levers
- Expansion into wearable companion apps
- B2B partnerships for anime-style educational content
Market Threats
- Dark Clan's community network effects drain PvP base
- Rising user acquisition costs in casual RPGs
What are the next best moves?
Ship cloud-save functionality because it is a top-requested missing feature → reduce long-term player churn
User feedback highlights data-loss frustration as a primary barrier to long-term investment.
Trade-off: Push the wearable companion app sprint to Q3 — wearable waitlist is smaller than cloud-save demand.
Audit progression depth against Dark Clan because retention is lagging → increase session length
Competitor analysis shows Dark Clan's mastery trees drive higher engagement than current chest-opening mechanics.
Trade-off: Pause the UI-refresh for the main menu — progression depth has a higher impact on retention.
A counter-intuitive read
The app's lack of pay-to-win mechanics is a long-term vulnerability, as it prevents the revenue density required to compete with aggressive live-ops rivals in the idle RPG category.
Feature Gaps vs Competitors
- Mastery trees (available in Dark Clan but absent here)
- Gem guardian raids (available in Dark Clan but absent here)
- Sword merging systems (available in Idle Sword Master but absent here)
Key Takeaways
Fish Kingdoms holds its casual audience through a unique arcade hook but bleeds long-term players to deeper RPGs, so revenue growth hinges on adding strategic depth to the progression loop.
Where Is It Heading?
Mixed Signals
The idle RPG market is consolidating around titles with high-frequency live-ops and deep social features, leaving Fish Kingdoms exposed. Without a shift to active feature development, the app will likely lose its casual-entry advantage to more aggressive entrants.
The lack of feature updates since late 2023 suggests the app is in maintenance mode, which leaves it vulnerable to active competitors.
The high iOS rating indicates the core arcade loop is stable, but the absence of Android-side momentum limits overall market reach.