"The magnet gimmick in Teslagrad serves as the core puzzle piece that keeps things going. No matter how much progress has been made, magnetism puzzles will be each portion of the castle's backbone, and these will get more and more complex. It can be tricky and sometimes a little unreliable knowing how much a certain magnetised wall or object will repel or attract the boy, and this can end in what sometimes seems to be some unfair deaths. Tricky caves are adorned with electric death traps that instantly fry the protagonist to a crisp, and each puzzle becomes more and more an exercise of trial and error as the game goes on. While this may be off-putting to some players, the frequent checkpoints (at least one in every room) mesh well enough with the trial and error gameplay to make it inoffensive."