Wow...
Personally, I'm a bit of a fan of these style of games (choose your own adventure).
On the + side:
1. Great Story
2. The main character is an ordinary person, not some SWAT or SEAL commando
3. The graphics were just your location, no gruesome eating or anything. It doesn't need to be violent to be good.
Problems:
1. Maybe some more specific shots of different locations would be good?
2. You were steered along a specific path; couldn't you choose to not save your wife?
3. I wasn't really sure what kind the DF zombies were. Can they Run and stuff?
However, this is still a great game, just needing minor improvements in Pt. 2.