Ideas for an Atmospheric Game

Here are a few ideas of mine for an atmospheric kind of game where you cannot see the character or the level but the only indication you have is a pulse where the character is touching.
An easier variation is where the only things you can see are the character an the pulse but not the stage.
Inspirations for this idea were from looking at Limbo, The Unfinished Swan, The Company of Myself and staring at a white sheet of paper...