Background and Worldview: Deep underground, the gem kingdom of “Shining City” has been corrupted by shadow magic, causing the energy crystals of its gem cores to scatter and crumble. Players, as descendants of gem craftsmen, must match gems of the same color to repair the energy cores and restore the kingdom’s glory before the shadows engulf the city.

Core Gameplay: Match-3 gameplay on a hexagonal grid. Click and drag gems to form three straight lines or L-shapes of the same color for elimination. Each level’s objective includes clearing shadow crystal blocks and collecting a specified number of red, blue, green, and purple gems. Consecutive eliminations create “Shining Stars,” which can clear entire rows and columns.

Features: Dynamic difficulty system that automatically adjusts obstacle density based on player speed. A special “Gem Race” mode with a 2-minute time limit tests the number of gems eliminated.

Visuals and Sound Effects: Realistic gem rendering with refracted light effects that change with elimination. The background is a magnificent underground palace. The soundtrack features a harp and glockenspiel duet, and the elimination sound effects are crisp and clear like colliding glass.

Number of Levels: 850

Level Introduction: Levels 1-80 are the Broken Mine, where you learn the hexagonal movement rules; Levels 81-250 are the Shadow Mine, where moving shadow fog appears; Levels 251-550 are the Core Furnace, where you must protect the energy core from going out; Levels 551-850 are the Shining Temple, introducing two-color chain elimination.