Report updated Jun 25, 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?
How Is The App's Momentum Right Now?
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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
Who is THE HORTOR TECHNOLOGY PTE?
The publisher operates with a dual-focus strategy, blending idle RPG mechanics with casual merge-and-story puzzle games to capture a low-friction gaming audience. Their structural approach relies on high-multiplier, arcade-style feedback loops designed for rapid, casual engagement rather than long-term competitive depth. The current portfolio reflects a lean development model, prioritizing aesthetic-driven casual titles that emphasize ease of progression.
Who is THE HORTOR TECHNOLOGY PTE for?
- Casual gamers interested in anime-style aesthetics
- Idle progression
- Low-pressure puzzle-solving
Portfolio momentum
Released 2 updates across 2 apps in the last 6 months, indicating a steady maintenance and development cycle.
What other apps does THE HORTOR TECHNOLOGY PTE make?
What do users think recently?
Analysis in progress, available soon
What is the competitive landscape for Fish Kingdoms：Idle Arena?
How's The Games Market?
Market outlook for this category
Available very soon
The rivals identified
The Nemesis
Head to Head
Focus on doubling down on the unique 'arcade fishing' hook to differentiate from the saturated generic idle RPG market.
What sets Fish Kingdoms：Idle Arena apart
Provides a more accessible, arcade-style fishing experience that appeals to casual players seeking quick sessions.
Lower barrier to entry with free summons and chest-opening mechanics that prioritize immediate gratification.
What's Dark Clan: Squad Idle RPG's Edge
Boasts a significantly larger user base and established community, creating a stronger network effect for PvP.
Offers a more sophisticated progression ecosystem that keeps hardcore idle gamers engaged for longer periods.
Contenders
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.
Goblin Adventure - Idle RPG
★1.8 (8)PANGU GAME GLOBAL LIMITED
Targets the same idle RPG demographic with a focus on creature collection and automated progression.
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.
Peers
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.
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.
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.
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.
New Kids on the Block
Provides specialized encounter management and initiative tracking tools that streamline the flow of tabletop combat sessions.
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.