This game is designed especially for those who likes solving different engineering puzzles.
At the beginning of the game you will get an empty box with the image of the product needed to be produced, a container full of feedstock and a wide range of things to proceed with.
You need to take one feedstock - a white ball - and using different instruments make it like the image on the box. If you failed you need to throw out a ball into trash.
But be careful! The number of white balls in the container is limited, so as many mistakes you do as many levels you wouldn't reach.