The mechanics is very easy, you are a boy who push boxes in a room and your goal is to place them in the correct place in the room. It seems easy, but things get harder and harder as long as you complete some levels. Yes, because you can't leave boxes in the middle of the room blocking the pass of the rest of boxes and the boy.
Remember you can push boxes but you can't drag them.
The graphics of the game are good enough, models are 3D and environments are well desgined, but in Sokobano it's puzzles that are important and they are amazing.