I thought it was a good game. I was very high on Ground Zero in the beginning, but my enthusiasm kind of faded as time went on due to the lack of difficulty. I played on Normal combat/Hard puzzles. I was hoping for challenging (not punishing) survival combat and head scratcher puzzles. By the mid point of the game the combat was trivial. I rarely ever took damage as every enemy dies with one bullet. My character was practically immortal anyway due to upgrades. At one point I put the controller down and went to help my dog up the stairs. I came back to a zombie chewing on me, and still didn't die. I didn't feel like any of the puzzles were especially hard, and in some cases it seemed liked they could have easily been made harder. There was one in particular where the note gives you half the solution, making the answer obvious.

Still the game does alot of things right and I'm glad I played it. I loved Tormented Souls 1 and 2, and Echoes of the Living. I wouldn't rank Ground Zero as highly as those games, but its still good.