Me and Mark Publishing today announced the release of its action puzzle game Red Cells for Mac OS X. The gameplay in Red Cells takes place on a grid of red and white cells. Click a red cell to convert it to a white cell. Hold the mouse button and drag the mouse to cut a row or column of red cells. Every few seconds the red cells spread and random white cells will mutate into red cells. The object of the game is to clear the grid of red cells before they spread past the edges of the grid. Red Cells requires Mac OS X 10.1 or later and is priced at US$15.