W A S D to move, mouse to turn the camera, Space to jump, Shift to run. Look down to find where you will land. In first person your hands appear when you move, jump or grab. Miss a ledge by a little and you will grab it: Space or W climbs, S lets go. V switches first or third person, M mutes the sound. Esc pauses.

Hold the left side to move. Drag the right side to look. Tap Jump to leap. Look down to find where you will land. Miss a ledge by a little and you grab it: Jump climbs, pull back lets go. The View and Sound buttons are at the top left.