Physics puzzlers: there's a ton of 'em about. One's got birds in. It's quite popular. Now there's another one. It's got some birds in too. But mostly ice. Ice and Vikings. And birds. It's called Icebreaker: A Viking Voyage. We think its dead good. Here's why.

Icebreaker: A Viking Voyage is like a really good sandwich. It provides you with a nourishing core, surrounded by a bunch of easily digestible, but thoroughly satisfying layers.

At its frosty heart, it's a game about slicing ice. Having been scattered to the wind by... some wind, your viking comrades are in need of rescue. Naturally, this task has fallen to you and your chop-happy fingers. To guide your bearded buddies onto the awaiting ship, you must bend the chilly environment to your will. Your primary trick is swipe through blocks of ice. Cut it at the right angle, and the ice mass will break apart and begin to slide - hopefully in the direction of the rescue ship.

Once you've mastered this interplay of ice, gradients, and gravity, the game starts introducing other variables. Man-eating trolls appear, ready to chow down on passing warriors. With the trolls comes levels coated in a sticky snot-like substance. This goo will stop sliding ice in its tracks, but can be detached with a quick swipe. Before long, you'll be harnessing the winged power of birds to reunite your Scandinavian gang.

Though we've seen the cutting mechanic before in other physics puzzlers, developer Nitrome has used it in a really creative way. What's more, when the other elements come into play (trolls, birds, water etc.) you'll have to really flex your lateral thinking muscles to come up with a solution.

To unlock levels, you must to complete each stage within a set number of swipes. This 'par' system forces you to be extra cautious in order to maximise the effect of every slice.

You can also buy so-called 'God powers' via in-app purchases. Though not essential, powers like the God Finger (which lets you drag a viking freely around the screen) make it far easier to complete certain levels. You can only get them by spending money, though, which we think is a bit a shame.

However, the game's inventive puzzles, handsome quasi-retro art style, and surprisingly amusing scripting render this IAP stinginess a minor annoyance. Its levels demand to be replayed so you can all the treasure chests or lower your swipe count, and you'll be more than happy to oblige. If you're peckish for a new physics puzzler packed with frosty goodness, then we recommend you have a slice of Icebreaker.