i don't know anyone from the game so i play alone, and it's not easy but it has certain amount of fun to it. You must watch out all the time, if you start bleeding you better have bandages and food to refill blood and stuff. One huge disadvantage playing solo is broken bones, if you dont have morphine and brak your bone in middle of nowhere you can pretty much press respawn. In some situations you get kinda paranoid (that rock in the distance moved, or did he? etc. ) I would like to play with someone but i also enjoy playing solo because these days it's hard to trust someone you know only ingame and because it's nice challenge