I saw this on io9 and it's definitely worth sharing. It's a beautiful and haunting story and the special effects on the creatures is incredible.
The description from their site:
A Sci-Fi, fantasy inspired by anime and classic horror, Dust is set in a harsh and unpredictable natural environment where people have isolated themselves in an ancient city behind a massive wall. A socially marginalized tracker teams up with a black-market merchant to save the society that has rejected his way of life.
Dust from Ember Lab on Vimeo.