KEY FEATURES
* 12 HANDCRAFTED LEVELS
Progress from compact 3x3 boards to classic 4x4 and brain-bending 5x5 grids. Two board styles alternate as you advance: clean numbered tiles and gorgeous gem-pattern boards where every tile is a slice of a procedurally drawn crystal artwork.
* THREE SPECIAL TILE TYPES
- Locked Tiles: sealed by a crystal lock until you place enough tiles correctly to break it.
- Axis Tiles: marked with arrows, they slide only along their fixed horizontal or vertical axis.
- Ice Tiles: each slide cracks the ice — after 3 slides the tile shatters into a normal one.
* FOUR IN-GAME BOOSTERS
Spend coins earned from your star ratings:
- Hint: highlights the best next slide using a Manhattan-distance heuristic.
- Auto Move: the AI instantly plays one optimal move for you.
- Tile Swap: swap any two tiles (up to 2 swaps per game, solvability preserved).
- Time Freeze: stop the clock for 10 precious seconds.
* DUAL SCORING & STARS
Every level grades you on both moves and time. Earn 1 to 3 stars per level and convert them into coins for the Booster Shop.
* FULL PLAY HISTORY
Every cleared level is recorded with date, time, grid size, moves, duration and stars. Browse your latest 20 results in the scrollable RECORDS panel, and see your stars and best move count right on the level-select screen.
* JUICY FEEDBACK
Dust trails while sliding, a green pulse when a tile snaps into its correct home, ice-shatter bursts, and a confetti celebration on every victory.
Always solvable shuffles verified by inversion parity, pause/restart any time, and progress saved automatically. No ads, no accounts — just pure sliding-puzzle flow.
Can you clear all 12 levels with three stars?
Slide salt-crystal tiles to restore the 15-puzzle! Levels, boosters, history.