File: Old.mans.journey.zip ... -
To move from one hill to another, their edges must touch. This allows the man to transition between the foreground and background.
You "click and drag" hills and ridges to change their height and shape.
It is often compared to films like The Snowman or the opening of Pixar's Up! for its ability to evoke profound emotion in a short (approx. 2-hour) timeframe.
Because it lacks language, it is considered "universally understandable".