| Core Identity |
| Developer | Kazunari Hiyoshi | Snapbreak Games | Rakshak Kalwani | Playstack Ltd | COTTONGAME Network Technology Co., Ltd. | TTN Games | Hangzhou Mofun Interactive Technology Co., Ltd | ZiNKY OYUN YAZILIM ANONiM SiRKETi | ABI GLOBAL LTD. | Metin Yucel |
| Category | Games | Games | Games | Games | Games | Puzzle | Games | Games | Games | Games |
| Platform | iOS | Android, iOS | iOS | Android, iOS | iOS, Android | Android | iOS | iOS | Android, iOS | iOS |
| Store Metrics |
| Rating | 4.9 / 5 | 4.9 / 5 | 4.1 / 5 | 4.7 / 5 | 4.2 / 5 | 4.3 / 5 | 4.8 / 5 | 4.7 / 5 | 4.7 / 5 | 2.3 / 5 |
| Ratings Count | 36 | 12,042 | 11 | 56 | 31 | 466 | 120 | 11 | 3,751 | 393 |
| Price | Free | Free | Free | Free | $0.99 | Free | Free | Free | Free | Free |
| Release Date | Dec 26, 2021 | Apr 10, 2024 | Jan 5, 2019 | Feb 6, 2026 | Jan 30, 2025 | Sep 3, 2018 | Aug 27, 2024 | Jun 22, 2025 | Apr 1, 2021 | Oct 10, 2014 |
| Last Updated | Jan 7, 2022 | Apr 7, 2026 | Feb 22, 2023 | May 12, 2026 | Feb 10, 2025 | May 17, 2026 | Dec 6, 2024 | Jun 22, 2025 | Nov 3, 2021 | Jun 8, 2019 |
| Sentiment & Reviews |
| Sentiment | positive | excellent | positive | positive | - | - | - | - | negative | - |
| Score | 80/100 | 85/100 | 75/100 | 78/100 | - | - | - | - | 35/100 | - |
| Praises | - The game provides a satisfying length of time and engaging puzzle mechanics for players
| - High-quality puzzle design and visual aesthetics create an immersive experience for players
- Generous free-to-play trial allows users to experience enough content before purchasing
- Smooth performance and lack of intrusive advertisements enhance the overall gameplay experience
| - Addictive puzzle mechanics provide high replay value for short gaming sessions
- High quality audio and visual design elements enhance the core puzzle experience
| - Logical deduction puzzles provide a rewarding challenge without relying on excessive hints or frustration
- Distinctive art style and narrative depth create a memorable atmosphere for mystery game fans
- Mobile accessibility allows for flexible play sessions during short breaks or commutes
| - | - | - | - | - Nostalgic gameplay loop provides a familiar and engaging experience for returning long-term players
- Simple one-handed control scheme allows for quick sessions during short periods of downtime
| - |
| Complaints | - Ambiguous visual cues during gameplay create confusion regarding the required mathematical operations for progression
| - Limited content length relative to the price point creates value dissatisfaction
- Hidden interactive elements are difficult to identify on smaller mobile screens
- Technical purchase failures prevent users from accessing the full game content
| - Technical instability and progress blocking bugs hinder the user experience
| - Progress loss and save file corruption occur frequently when the application quits unexpectedly
- In-app purchase restoration fails to unlock content for users who already paid
- Missing achievement unlocks for specific late-game scenarios frustrate completionist players
| - | - | - | - | - Excessive ad frequency interrupts gameplay flow and makes the experience feel unplayable for users
- In-app purchases to remove advertisements fail to provide the promised ad-free experience
- Forced internet connectivity requirements serve primarily to facilitate aggressive advertisement delivery during sessions
| - |
| Requests | - | - Development of a sequel or additional content modules to extend the game
| - Expansion of the content library with additional levels and new maps
| - Transparent pricing models are requested to avoid confusion regarding free-to-play versus paid content
- Expansion of the franchise with additional cases and sequels for mobile platforms
| - | - | - | - | - Additional levels are requested to extend the current short and limited content progression
| - |
| Strategic Intel |
| Strengths | - Tactile puzzle logic sustains high user satisfaction
- Minimalist interface reduces onboarding friction
| - 11-language localization drives global install velocity
- 3D mechanical puzzle loop sustains high session quality
- Freemium trial conversion model captures casual interest
| - Audio-visual polish drives daily engagement for casual segments
- Rewarded video ads monetize non-paying users without forced-ad churn
| - Deduction-based gameplay mechanics sustain long-term player engagement
- Ad-free premium model builds brand authority among high-intent users
| - Established 2D art brand drives cross-title conversion
- Multi-language support expands addressable market reach
| - | - | - | - Interactive comic format drives session length via choice-based narrative
- One-handed control scheme lowers barrier to entry for casual sessions
| - |
| Weaknesses | - No in-app monetization limits revenue
- Static content volume restricts long-term retention
| - Purchase button failures block revenue in the latest release
- Content volume is insufficient for the price point
- Small interactive triggers frustrate mobile users
| - 72-level content limit creates a hard retention ceiling
- Technical instability on specific hardware blocks user progress
| - Recurring save-data loss on unexpected app closure
- In-app purchase restoration failures for paying users
| - Android price point at $1.99 exceeds iOS tier
- Lack of recurring content updates limits retention
| - | - | - | - Ad-removal purchase fails to deliver promised ad-free experience
- Forced internet requirement prevents offline play
- Content cap limits long-term retention
| - |
| Pricing | free | freemium | freemium | paid | paid | free | free | free | freemium | free |
| Momentum | - | Maintenance | - | Maintenance | Steady | - | - | - | Maintenance | - |
| Update Cadence | - | 5 versions, ~63d avg | - | 4 versions, ~57d avg | 4 versions | - | - | - | 5 versions, 1 majors/6mo, ~409d avg | - |
