Solo
[14] Master
It's quite unpopular because the story confuses most people because you have to piece it together, no fast travel (until after your first playthrough), the menus, the fact it's hard at the beginning, and that the npc character are pretty damn bland to be honest. The npc characters are one of my few complaints about that game. Oh and that certain pawns talk way too damn much. I'm glad mine is quiet.
