Merge Defense 3D is a strategy game in which you must keep the cubes from reaching the bottom of the screen for as long as possible. You will have to aim not just at the falling blocks, but also at the keys and diamonds that protrude from the board. Keys will allow you to purchase a new tower, while diamonds will be used to purchase other power-ups such as bombs that reduce the enemy cubes' life by half, extra keys, and a freeze that gives you free turns...
