PuzzleStones is a color-based puzzle game with 2 fundamental differences. The game is easy to pick up and play but, thanks to the removal of the luck element (which is prevalent in the genre), it is a hard one to master.
The player matches vertical or horizontal lines of 3 or more pieces, but gaps made up of different colored pieces, can exist between each instances. The more pieces in the match, and the fewer the number of gaps, the higher its score will be. As such there are lots of possible matches, but to do well the player has to build better value matches through a series of moves, rather than just reacting to how the game has refilled the grid.
This is done through controlling the grid refills - as there is no gravity. After making a match the game slides along the remaining pieces in the direction that the player used when making the match - be it up, down, to the left or to the right. This way the player can control where pieces end up and build better matches themselves. Experienced players can regularly construct 8 pieces in a row using advanced techniques.
The game contains many modes, some work on a completely different basis - such as hitting specific colored targets on the grid with matches of that color. And there is a rich, fully fleshed out multiplayer mode as well.
Currently available for Nokia phones and coming soon to Android, PC and more.