Just started playing this today. Definitely an inspiration.
The game is so damn accessible, too. There's no menu screen when you start: you're told how to walk, and you start walking. You're shown the controls as you need them, in a fairly understated way. (Eg, the first time you're rewinding a long time/distance, it fades in the keys you need to change playback speed, shown near your character.) There's no HUD, lives, inventory, any of that stuff. You don't need to manage saves.