Lacks building suspense. Lots of tense moments and scenes that peak and trough, peak and trough. Few of the characters, though, make their motivations felt rather than simply voiced, so the story doesn't feel as though it progresses as a whole.

On first attempt, made it three quarters of the way through Episode 1 before giving up. Then foolishly tried again after reading so many positive reviews.

On second attempt, made it to half way through Episode 4 before giving up after realizing that I still didn't care whether the characters made it to their intended destination.

Zombie video games tend to lack a story ark, so perhaps its lack here is to be expected.