Not a perfect sequal to 2, but a worthy one. They improved some quality of life stuff. Find the right key to the right door. I found sometimes decisions on how puzzles work or where I found things to be "really?" One time I was locked out of a room, ran all the way back to an item chest room, then went back to the locked room, to only unlock/open it to another safe room. So a bit of a troll from the game design. But minor negative to the greatness this game is. The zombies are great, other monsters, story, etc.