A very solid, succinctly executed zombie survival game that's a little bit Powered by the Apocalypse, a little bit OSR.
I would use this immediately for short zombie survival adventures. I would love to see a more developed version of this, perhaps with some interesting tables.
The book has some very solid "complication tables" at the back, a great resource for everyone but especially for newer GMs.
One thing that might improve it is one page of explanation about the 2d6 roll (it's reasonably beginner friendly otherwise so this would fit) and a table of example Specialties, though I think there were logical reasons why one wasn't included. Page 10, Running the Session, has some good concise advice about adjudicating rolls, but a page of examples might have helped.
I think this game might work best for experienced GMs who are willing to pull from other Powered by the Apocalypse or OSR games to fill it out.
(There's a typo on page 10: "Running Sessions" at the top has an extra N.)