Number Connect Puzzle / Mobile
built through systems & delivery.
Solo Unity Developer / Personal Project / 2025 - Present
A published dark-themed Unity number-connect puzzle inspired by linked-path games, where players connect matching numbers through clean paths while chasing daily challenges, achievements, and leaderboard ranks.
Turned a simple connect-the-numbers puzzle loop into a competitive mobile experience with live player identity, achievement tracking, in-game rewards, and real-time Firebase-backed rankings.
2025 - Present
Solo Unity Developer
Personal Project
Hierarchical Firebase RTDB data keyed by daily date or level ID, with top-score queries, atomic score updates, and limited leaderboard reads
Case study overview
Built a polished number-link puzzle loop where players connect matching numbers with valid paths, backed by crisp mobile-first drag input.
Implemented daily puzzles, reward currency, daily leaderboards, per-level rankings, achievements, player profiles, and case-insensitive display-name validation.
Shipped the game on the App Store with Firebase auth, real-time leaderboard updates, DOTween-driven UI, loading states, tab transitions, and result submission flows.
Responsibilities
Path-connection interaction model, daily challenge flow, achievement tracking, reward loop, and dark mobile UI polish
DailyLeaderboardService, LevelLeaderboardService, FirebaseGameResultService, profile update flows, and leaderboard UI
Firebase authentication, real-time database structure, username validation, and historical leaderboard name propagation
Technical work
Hierarchical Firebase RTDB data keyed by daily date or level ID, with top-score queries, atomic score updates, and limited leaderboard reads
Case-insensitive username registry that validates display-name changes and cascades approved names to previous leaderboard entries
DOTween SetLink and OnDestroy cleanup patterns that keep button feedback, path rendering, tab transitions, and achievement popups stable on mobile
Challenges
Making path drawing and number connection feel precise across devices with very different screen densities
Reducing Firebase reads and writes while keeping rankings, profile data, and player progress responsive
Maintaining premium-feeling dark UI transitions while preventing delayed animation callbacks from touching destroyed components
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