Dying Light
I've been having a lot of fun with this, both solo and co-op
The final story mission is a bit of a let down, but I had already heard about that so I wasn't expecting it to be great.
Spoiler warning:
Still have to check out The Following, The Bozak Horde and Parkour Fever (I think I got one trophy for that one already) DLC content (I have the Enhanced Edition).