A puzzle game in the style of sokoban with more complex rules awaits you in the game Procban. The pixel block wanders through the labyrinth with one purpose - to deliver a square box to a certain place. To do this, it must be moved along the corridors. But on the way there will be different barriers: locked doors, marked with keys and unnecessary boxes. To open the lock, you need to find the key and move it to the door. The arrows on the field limit the movement in that you can not move the object against the direction of the pointer. Use the portals to move and take into account all the obstacles.