While in many ways this is a really good game it is seriously let down by the ways it is STUPIDLY difficult even on easy. Last stupidly furstrating experience was putting literally over a hundred bullets into a mutant and it still surviving long enough to kill me... Just completed Quake 2 on medium, now that's what I call a satisfying first person shooter!
Unless you are super talented at coping with awkward and poor controls I strongly recommend you do not buy this game. I have played games that I got for nothing which played well. With this game you are likely paying to be greatly frustrated and disappointed. Wish I could give it zero stars!
Noticed most recent review said that the last mission but one is buggy. It is not. I had difficulty with it too because the mission description was unclear. Found out how to complete it from Utube. After blocking exits of retreat you can kill the princes. But then after being pulled into your prison you need to place them into the torture chamber. Highly enjoyable and satisfying game that will increasingly test your strategy skills.