Climb On! - Free

Build your staircase as high as you can! Collect additional stairs on your way. Don't slack and fall behind, though! Plan your route so you don't run out of stairs. And remember - the higher you are, the harder it gets.System requirements: a reasonably new device. But you are welcome to try - it's free anyway.The free version has one reeeally all ad field, and so, needs a network access. The paid version does not require anything.