HydroVexTri

This is a single-player card elimination puzzle game themed around hydrogen energy storage and transportation bottlenecks. Players face a board of shuffled cards, each displaying chemical symbols, numbers, or letters related to hydrogen science. Tap cards to move them into selection slots at the bottom of the screen. When three cards with matching symbols gather in the slots, they are automatically eliminated. The goal is to clear every card from the board. If all seven slots fill up without forming a triple match, the game ends in defeat. Three difficulty levels are available: easy with 21 cards, medium with 30 cards, and hard with 42 cards, each offering progressively greater challenges. The app features a comprehensive achievement system with badges for milestones like first completion, speed runs, win streaks, and cumulative card eliminations. Every game session is recorded with details including difficulty level, outcome, elapsed time, and cards cleared. A statistics dashboard presents key metrics such as win rate, total games played, best streak, and fastest clear time through animated visualizations. The design draws inspiration from hydrogen energy with a fresh teal and cyan color palette, vibrant card colors, and smooth interactive animations throughout.