Cairn is a single player, story focused, survival game about climbing a mountain. Cairn begins, as it must, with a quick tutorial. Walk up to a wall, press the button, and you’ll start climbing. The Climbot and the pitons are the really important tools, but there’s plenty of other things to think about as well. Cairn feels like a way for some of the developers to try to express why they, personally, really like mountain climbing.