- Three levels of difficulty
- 3D spheres instead of 2D squares
- Simple but realistic-looking graphics
- It is almost always possible to find the solution without luck
To open a sphere, "click" on it with the trigger of the controller. If it contains a mine, you loose. Otherwise, a number appears. This is the number of adjacent spheres that contain mines. The precise rule is that two positions are adjacent if their 3D distance is smaller than 1.5. That gives each sphere up to 18 neighbors; but don't fear, it is easy find neighbors: hovering over a number with the controller highlights all the adjacent spheres.
You can also click on a sphere with the "other" button (on Vive, press the touchpad; on Oculus, it is the A or X button). Use it to flag spheres where you think there is a mine.