So, I've got some friends playing this game, and I decided to give it a try. It's a free-to-play third person shooter with the majority of content based on PvE combat. You basically play as a robotic ninja going on missions with other robotic ninjas, and so far it's pretty fun. The free to play model seems pretty fair, using a league of legends style system. Everything that actually alters your character in a meaningful way can be obtained and crafted just from playing the game, with the only things you're forced to pay for being purely cosmetic changes.
The best way I can describe it is that it reminds me a lot of the Mass Effect 3 multiplayer, but with more variation in missions than just defeating waves of enemies. It's available for free on both PC (the obviously superior version) or the PS4 (if you aren't a member of the gaming master race.) If you want to give it a try, make sure to use my referral link below, because that means I get free rewards! (and you do too, so you know... mutual benefit).