Cairn puts you in the boots of Daisy, a brave explorer whose mission is to climb an immense, never-ending tower. As you ascend, you encounter strange creatures that grant you the power to manipulate the terrain. This unique ability lets you literally shape the path, leaving your mark on the tower itself. The core of the game is a moral choice: will your alterations help future climbers, or will they just add more chaos to the towering structure?