Dig Mines 3D is Minesweeper for 3D.
Let's remove all mines with the help of a number.

Number represents the number of mines in around 8 square on the surface. Let's mark (put up a flag) the block to dismantle mines.
The game is clear if I dismantle all mines!

Tap -> Open the block
Long Tap -> Mark the block
Double Tap -> Dismantle the mine block / Remove the number block
Flick -> Rotate the cube
Pinch -> Zoom in / Zoom out

For more detailed instructions please see this help page. (Japanese)
http://kittoworks.com/digmines3d/help/