We're not gonna muck this up with a bunch of words. Just watch. And wait for April, apparently, for SAWS | The Puridium War. Mechs. High-def Mechs. Or, as the dev puts it:
The year is 2210, and the world has begun to rebuild after an exploded near-earth asteroid rained down shards of blue all around the globe. Scientists discovered that the crystals that almost destroyed us all, held the secret to clean energy. Puridium, as it was named, emitted pure un-radiated energy when struck with just the right frequencies, and a new age of man was born. Unfortunately, we weren’t the only things interested in the Puridium. The DEVOUR are creature that started to show up all over the world, hunting and seeking out Puridium. They feed off of the crystals, and will stop at nothing to obtain it, and now we have a planet painted blue with it.
You are PFC Lucas 11 of SAWS Battalion E25, and you have taken an oath to defend humanity from the DEVOUR. As a member of the Special Assault Weapons Squad, you will be piloting the latest generation assault suit equipped with some of the most destructive mobile weapons ever created.