Swim Fly

This is an experimental art exhibit that combines futuristic environments with procedurally generated worlds. Dive underwater to swim through a fascinating world of alien kelp trees, coral reefs, and underwater cities or fly above ground with an interesting assortment of creatures over a beautifully crafted world. The game mechanics are designed to make you feel like you are really swimming through the water, or flapping your arms like a bird!

https://www.youtube.com/watch?v=_7V1KDNbtpY