| Core Identity |
| Developer | Lion Studios | JoyBits Ltd. | Daniel Asto | neal.fun | Microfun Limited | Gram Games | Metacore Games Oy | Gram Games | ICEBEAR., JSC |
| Category | Games | Games | Games | Games | Games | Games | Games | Games | Games |
| Platform | Android, iOS | iOS, Android | iOS | Android, iOS | Android, iOS | Android, iOS | Android, iOS | iOS, Android | iOS, Android |
| Store Metrics |
| Rating | 3.4 / 5 | 0.0 / 5 | 4.7 / 5 | 4.8 / 5 | 4.8 / 5 | 4.8 / 5 | 4.6 / 5 | 4.7 / 5 | 4.5 / 5 |
| Ratings Count | 1,888 | 0 | 7,663 | 47,024 | 24,076 | 90,927 | 197,033 | 420,164 | 243 |
| Price | Free | $4.99 | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Jul 17, 2020 | Feb 20, 2013 | Nov 14, 2014 | Apr 29, 2024 | Nov 19, 2021 | Sep 17, 2019 | Sep 16, 2020 | Jun 28, 2017 | Jun 8, 2022 |
| Last Updated | Apr 17, 2024 | Jul 14, 2016 | May 2, 2025 | Oct 27, 2025 | Apr 14, 2026 | Apr 16, 2026 | Jun 8, 2026 | Jun 30, 2026 | Nov 29, 2025 |
| Sentiment & Reviews |
| Sentiment | negative | - | - | - | mixed | mixed | negative | positive | - |
| Score | 35/100 | - | - | - | 55/100 | 45/100 | 25/100 | 85/100 | - |
| Praises | - Educational and calming gameplay mechanics provide a relaxing experience for casual users
| - | - | - | - Engaging Gameplay
- Non-Intrusive Advertising
| - Addictive core merge gameplay loop provides long-term entertainment for casual players
| - Engaging narrative and character interactions provide a relaxing escape for long-term players
| - Addictive merge loops and satisfying dragon evolution mechanics
| - |
| Complaints | - Excessive ad frequency disrupts the core gameplay loop and degrades user experience
| - | - | - | - Technical Instability and Crashes
- Excessive Updates and Data Usage
- Aggressive Monetization
| - Critical progress loss and save file corruption occur due to unreliable cloud synchronization
| - Drastic UI layout changes following the latest update hinder navigation and accessibility
- Aggressive monetization and removal of free energy sources force a pay-to-win experience
| - High-frequency complaints regarding random item drop rates and progression bottlenecks
| - |
| Requests | - Additional levels and content updates are required to maintain long-term player interest
| - | - | - | - | - Native cloud save functionality independent of third-party social media platforms
| - Reversion of the recent UI layout changes to restore previous navigation efficiency
| - | - |
| Strategic Intel |
| Strengths | - Intuitive drag-and-drop mechanics sustain initial session engagement
- Scientific theme differentiates from fantasy-heavy merge titles
| - | - | - Emergent discovery engine sustains high-frequency session loops via 100 million+ combinations.
- Local save file management provides necessary persistence for long-term user progress.
- Web-first architecture allows for rapid, real-time discovery of user-generated content.
| - Unique town-wide restoration scope vs single-estate competitors
- Highly valued 'no forced ads' monetization philosophy
- Strong character-driven narrative integration
| - Creature-collection mechanics drive long-term retention
- Visual design sustains player interest
| - Mystery-driven narrative acts as a long-term retention anchor
- Seasonal event structure provides consistent content cadence
| - Persistent camp-building loop creates high switching costs
- 1,600+ object combinations drive long-term engagement
| - |
| Weaknesses | - 3.16 rating on Android reflects persistent crash-on-load bugs
- Ad frequency is the top churn driver in reviews
| - | - | - No persistent collection log or encyclopedia to reward long-term discovery.
- Ad-only monetization model lacks high-value conversion tiers for power users.
- Lack of social leaderboards or daily challenges limits recurring daily active usage.
| - Severe technical instability and frequent crashing
- High data consumption due to frequent mandatory updates
- Perceived predatory monetization in limited-time events
| - Unreliable cloud sync causes progress loss
- High gem costs frustrate long-term players
| - UI regressions in the latest update hinder accessibility
- Removal of free energy sources drives negative sentiment
- Technical instability causes progress loss
| - Random-item monetization creates negative sentiment
- Lack of real-time competitive PvP limits retention
| - |
| Pricing | freemium | paid | freemium | freemium | freemium | freemium | freemium | freemium | freemium |
| Momentum | Maintenance | Steady | Maintenance | Steady | Intense | Active | Active | Active | Active |
| Update Cadence | 5 versions, ~196d avg | 5 versions | 5 versions | 5 versions | 5 versions, 5 majors/6mo, ~12d avg | 5 versions, 2 majors/6mo, ~9d avg | 5 versions, 3 majors/6mo, ~11d avg | 5 versions, ~5d avg | 5 versions |
