Unsolved: Hidden Mystery Games represents Artifex Mundi's entry into the free-to-play hidden object genre, offering a centralized platform for multiple detective-themed puzzle adventures. The application positions itself as a comprehensive mystery gaming hub where users can access numerous cases without switching between different applications, creating an interconnected multiverse of investigative scenarios. The core functionality revolves around hidden object scenes, inventory-based puzzles, and narrative-driven investigations. Each case presents players with detailed environments to examine, containing concealed clues and interactive elements that advance the storyline. The game incorporates traditional point-and-click adventure mechanics with touch-optimized controls, including zoom functionality for detailed inspection and a hint system that guides players during challenging segments. Energy mechanics govern play sessions, with actions consuming units that regenerate slowly over time or can be replenished through in-app purchases. User experience demonstrates polished production values with hand-drawn artwork, atmospheric sound design, and intuitive interface navigation. The touch interface responds accurately to interactions, with visual feedback confirming successful discoveries. Real-world usage patterns show players typically engage in short sessions due to energy limitations, though the compelling narratives encourage return visits. The application maintains progress across multiple cases simultaneously, allowing users to switch between different mysteries without losing investigation progress. User feedback consistently praises the game's engaging puzzles and narrative depth while criticizing energy mechanics. Eric Newquist's July 2025 review notes 'challenging puzzles to solve' but expresses frustration that 'energy depletes quickly... requiring long waits or purchases.' Jaime Shults' August 2025 review acknowledges addictiveness while questioning why 'energy takes a full day rather than half a day to refill.' Positive reviews from Samantha Elaine Jesalva and Kristen Henry in August 2025 highlight the balanced difficulty that 'stimulates the brain without being too hard.' The application excels in providing substantial free content with professional production quality, though the energy system significantly restricts continuous play. Ideal for players who prefer intermittent gaming sessions rather than extended playthroughs. The business model follows typical free-to-play patterns where patience or monetary investment determines progression speed, which may frustrate users seeking uninterrupted mystery solving.