Darks Souls 3, for me, is more of a single player experience due to the limited resources required to activate the multiplayer. Dark Souls 3 makes my single player experience of the year. I bought it only 4 days ago and have logged 16 hours.
Overwatch is my multiplayer game of the year. I bought it because I had some extra store credit gathering dust and was hooked for several hours after canceling the plans I had for that night.
I haven't finished Blood and Wine yet, but now I know I should.