Gridlock 15 is a sliding puzzle consisting of a frame of square blocks with an image in random order with one block missing. The goal of the puzzle is to arrange the blocks in order by making sliding moves that use the empty space.

Puzzle game features:
- Smooth sliding puzzle game effects
- Easy to learn and fun to master gameplay
- Guaranteed solution to all puzzles
- Many challenging levels
- Great visual effects
- Supports multi-block touch gestures
- No wifi? Not a problem! You can play offline anywhere.

Enjoy a game full of puzzles and fun with your friends.