Gravblock is a puzzle game where the objective is to drop pieces onto a grid to clear rows and columns by lining them up. It is similar to Tetris but instead of being able to rotate the pieces, you can rotate the grid. Gravblock has five difficulty levels to choose from as you train your brain and your skill level increases. There are multiple color themes available for changing the look and feel of the game. Battle your way to the top of the leaderboard in this fun and challenging game!

Credits
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Achievement Art:

Modified version of "Chess Board and Pieces" (http://all-free-download.com/free-vector/download/chess_board_and_pieces_57990.html)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/