At its best, which is when a level is at just the right difficulty for the individual player, Nuclien provides a very smooth, fast-paced, and satisfying number puzzle experience. The aesthetic is pleasing for the most part, and blasting your way through intricate layouts feels great. With only a couple of hours’ worth of content on offer, all of which is based around the same concept, Nuclien does feel a little bare-bones (although, in fairness, this is reflected in the asking price). It won’t wow or amaze you as you play, but it isn’t a bad way to pass the time, either - especially if you enjoy quick reflex puzzles on the go.