This game is a remake of sorts of games like "Boulder Dash", where your job is to collect crystals/diamonds without getting yourself killed in the process. This also means that you have to look out and plan your progress, unless you want to close in diamonds so they cannot be accessed.
The game has a lot more details than the old classics, and as such prolongs the gameplay. But it is a rather simple game.
We have tried to get in touch with the developer of this game, but without luck.