An incredibly boring, unbalanced game, that fails to deliver anything meaningful.
First, the crafting: This is the game's only true strength, but it's still lacking. There's only a handful of weapons and minor upgrades to them for you to create. A weak machine gun, an average machine gun, a strong machine gun. A rifle. A wooden bow, a metal bow, two upgrades to add onto them. Everything boils down to a couple of tiers of equipment that do the same thing.
Second, balance: The difficulty curve is all over the place. At the start of the game, you will get mauled, guaranteed, by all the zombies. You'll only have a stick to defend yourself with, which is slow, weak and inefficient against the sheer number of zombies. Then you can finally get a ranged weapon and the game becomes yawn inducing, followed by the second island, where helmeted zombies might actually land a hit on you if there's several of them.
Then you get to the third island and, despite further upgrading your bow AND gun, find that neither are all that effective against the zombies there. How ineffective are they? It takes two perfect head shots to take them down, assuming they don't have a helmet. They also come at you in droves and your movement is slowed by the swamp.
Then you find the recipe for an upgraded boomerang. This weapon outperforms bows and guns quite easily, in terms of speed, damage and lack of ammo consumption. It's only weakness is that you have to wait for the weapon to come back before you can throw it again, but this didn't cause me problems at all. Between the long effective range, high damage and hitting twice, it's often able to take out multiple zombies per throw and the delay is actually pretty low.
Third, the enemies: There is nothing remotely interesting about any of them. There's regular zombies, progressively faster and stronger zombies, fat (explosive) zombies, head crabs and giant zombies. Nothing new to report. Oh, and there's also zombie deer and what I believe are emus. The birds just zerg rush, so they're also boring. The deer attack by charging and can stun you, which makes them one of the more interesting enemies, if only because their speed means they'll actually hit you.
Fourth, the plot and characters: The plot is bland. You're marooned on an island and have to survive. The characters are all varying degrees of insane and unlikable. I'd guess that the game was aiming to be parody, but it's just so unfunny and overall dull that I honestly can't tell if it's being sincere or not.
Fifth, the quests: Every single one is a fetch quest. If it's not a fetch quest at first, it will become one soon enough. Also, get used to failure, because it's guaranteed. Unless it involves getting to another zombie infested island, you're not actually accomplishing anything.
And then there's the monkeys. With pet parrots. Who give optional fetch quests, because clearly we didn't have enough of them already, right? These are what make me wonder if the game is meant as parody, because they so clearly break the bleak mood of the game. Unfortunately, all they accomplish is changing my mood from apathy to annoyance. The squawking really gets old.
Sixth, bugs and nitpicking: One bug I keep running into is that, after I took the skill that showed certain plants on the map, some of the plant icons would remain after harvesting while others wouldn't. A similar problem I kept running into with the skill to see animals on the map was sometimes the icons for them didn't show up, despite the deer being close enough for me to see its antlers.
Also, there's a sound bug with the boomerang. Sometimes after throwing it, the sound continues even after it returns, which gets annoying very fast. Usually it happens when I open the inventory menu while it's still airborne, but sometimes it just happens.
And one last, little annoyance, of no real significance: The voice acting doesn't match up with the dialog boxes, like they were using two different versions of the same script. The ideas are all the same, but the words are different.