| Core Identity |
| Developer | Haiku Games Co | Kiary Games Ltd | Yak & co | Rusty Lake | Fireproof Studios Limited | Nordcurrent UAB | Pretty Simple | wooga | EYEWIND LIMITED |
| Category | Games | Games | Games | Games | Games | Games | Games | Games | Games |
| Platform | Android, iOS | iOS, Android | iOS, Android | Android, iOS | iOS, Android | iOS, Android | iOS, Android | iOS, Android | iOS, Android |
| Store Metrics |
| Rating | 4.6 / 5 | 4.8 / 5 | 4.8 / 5 | 4.9 / 5 | 4.8 / 5 | 4.3 / 5 | 4.7 / 5 | 4.6 / 5 | 4.6 / 5 |
| Ratings Count | 23,163 | 10,901 | 10,535 | 10,605 | 7,493 | 108,971 | 35,636 | 323,988 | 26,082 |
| Price | Free | Free | Free | Free | $0.99 | Free | Free | Free | Free |
| Release Date | Oct 30, 2015 | Apr 7, 2021 | Oct 28, 2015 | Sep 20, 2018 | Sep 19, 2012 | Oct 2, 2018 | Aug 28, 2014 | Dec 23, 2021 | Jan 7, 2020 |
| Last Updated | Aug 12, 2018 | Apr 30, 2026 | Oct 16, 2023 | Feb 20, 2019 | Feb 23, 2021 | Feb 12, 2026 | Aug 28, 2025 | Apr 15, 2026 | Feb 5, 2026 |
| Sentiment & Reviews |
| Sentiment | positive | positive | - | - | excellent | mixed | mixed | negative | mixed |
| Score | 85/100 | 75/100 | - | - | 88/100 | 45/100 | 53/100 | 32/100 | 35/100 |
| Praises | - Challenging puzzle designs keep players mentally engaged without becoming overly frustrating during long sessions
- High quality narrative and atmospheric storytelling drive player immersion across multiple game chapters
- Simple and clean interface design allows for intuitive navigation during complex puzzle solving
| - Intricate puzzle design and narrative depth create a highly immersive experience for mystery enthusiasts
| - | - | - Intricate puzzle design and mechanical box interactions create highly immersive and satisfying gameplay sessions
- High production value in graphics and audio sustains long-term appeal across multiple years of play
| - Engaging narrative storylines and high-quality voice acting keep players invested in the mystery
| - Engaging Investigative Gameplay
| - Engaging Narrative
- Relaxing Experience
| - Challenging puzzle mechanics provide a satisfying mental workout for casual players
|
| Complaints | - High cost of hint purchases creates friction for players stuck on difficult puzzle segments
- Excessive tap requirements to complete specific scenes disrupt the flow of the gameplay experience
- Short chapter length leaves players wanting more substantial content per play session
| - Persistent loading screen hangs prevent game access for a segment of Android users post-update
| - | - | - Excessively dark visual design makes identifying critical puzzle details difficult without manual brightness adjustments
- Limited content volume leads to rapid completion and feelings of dissatisfaction regarding the price
| - Aggressive energy consumption rates force long wait times that disrupt the core gameplay loop
| - Facebook Login & Sync Failure
| - Aggressive Monetization
- Technical Instability
| - Broken ad-removal purchase fails to eliminate forced advertisements for many users
|
| Requests | - Alternative methods to earn hints without requiring direct monetary purchases during gameplay
| - Expanded content and additional story chapters requested by players who finished the current narrative
| - | - | - In-game brightness and display settings to improve visibility during dark atmospheric puzzle sequences
| - Alternative methods to earn energy such as watching advertisements or completing side tasks
| - | - | - Regular content updates to provide additional levels for long-term players
|
| Strategic Intel |
| Strengths | - Episodic narrative structure drives long-term retention
- Logic-based puzzle design reduces churn by avoiding trial-and-error frustration
- Free-to-play access maximizes top-of-funnel install volume
| - Editors' Choice badge across five markets sustains organic install velocity
- 3D rotation mechanic drives session length via hidden-clue discovery
| - | - | - Tactile 3D mechanics establish category authority
- Editors' Choice badge sustains organic install velocity
- High-fidelity production value holds long-term appeal
| - Episodic narrative structure sustains long-term player retention
- 1930s atmospheric design differentiates from supernatural-themed competitors
| - Authentic forensic mini-games (DNA, autopsy) provide unique immersion
- Massive legacy user base with over 4.3M ratings on Android
- Strong 'CSI' style narrative hook that stands out from supernatural peers
| - Strong 1920s thematic consistency
- Weekly episodic content updates
- Deep social integration via Detective Clubs
| - Artist submission portal reduces content production costs
- Offline play maintains retention in low-connectivity segments
- Diverse thematic packs sustain long-term engagement
|
| Weaknesses | - Hint pricing creates progression friction
- Excessive tap requirements disrupt gameplay flow
- Short chapter length limits session depth
| - Persistent loading screen hangs on Android post-update
- No cloud-save functionality despite high user demand
- 0.05★ rating gap between iOS and Android platforms
| - | - | - Premium $0.99 model lacks recurring revenue
- No in-game brightness settings for accessibility
- Limited content volume relative to competitors
| - Energy recharge rate is prohibitively slow for free-to-play users
- Multi-year gaps between chapter releases drive long-term churn
| - Critical Facebook API failure preventing progress recovery
- Restrictive energy economy (20 cap) limiting session length
- Lack of a meta-game progression sink (e.g., building or customization)
| - Frequent ad-related crashes
- Perceived pay-to-win progression balance
- Unresponsive customer support
| - Ad-removal purchase failure triggers high churn
- Unresponsive touch controls on mobile devices
- Frequent crashes during loading screens
|
| Pricing | free | freemium | free | freemium | paid | freemium | freemium | freemium | freemium |
| Momentum | Zombie | Maintenance | Zombie | Steady | Zombie | Maintenance | Maintenance | Active | Maintenance |
| Update Cadence | 3 versions, 1 majors/6mo, ~498d avg | 5 versions, ~207d avg | 5 versions | 5 versions | 2 versions, ~1693d avg | 5 versions, ~149d avg | 5 versions, 1 majors/6mo, ~171d avg | 3 versions, 1 majors/6mo, ~12d avg | 2 versions, ~33d avg |
