Particles

The world is, generally, a pretty dirty place.  Look around outside and you'll see all kinds of little dust particles floating in the air.  That being said, particles are a great way to add some ambiance to the scene and they just look really pretty :]

Notice all the little particulates floating around in the air.

Particles will slowly fall down due to the gravity of the planet below.

Sparks at the feet of the player when they're dragging along the ground.

I couldn't get a good screenshot of it, but whenever the player hits a wall they also generate a bunch of particles around them.

Easy to program and they add a good amount of depth to the scene.  I'm going to do some UI tweaks and I have 2 creatures that I want to add.  Once that's done, I'll release it to the testers and hope for the best.