I never heard of this game before. What is it?

It's from BioWare (original team, the guys behind Mass Effect 1-3 and Dragon Age). It's online co-op and you can play solo or with up to 3 other people. You pilot suits called Javelins and are trying to find out the history of the world via the Anthems of Creation and protect the human race.

Huh, that's rather interesting. What monsters do you fight in it?

There's 3 enemy factions. Scars (insect-like creatures that resemble human form) Dominion (main baddies) and Outlaws (exactly as they sound).

Then there is the local fauna to fight as well.

I sort of wanna play it, to be honest.

I'd highly recommend it if you can. :) The story isn't super great but the gameplay is awesome and they have some huge updates coming up.