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this feels like a mash up of the Rebuild and Last Stand games and does a pretty good job of pulling both off

It might get a bit repetive after some time, but heck, it's a kind of a zombie shooter. But you should use another background from time to time . It gets boring soon to always shoot the same zombies on the same field with the same music in the background.

This game also misses some upgrades. You know, like upgrading the barricade, ammunation, or equipping survivors with weapons you don't use. Upgradeable stuff makes this kind of games really interesting. Also it misses a display for the ammo left before you got to reload.

On the plus side, the graphics were good, and the system of Headshot / ordinary hit is pretty cool. Probably change the Timethingie, it looks a bit silly if the game tells you that you got 700 Time. Another plus is that your survivors got different skills. They're not just blank faces, each one got his own set of skills.

Well ... to the point, I would recommend you add a display for the ammo left, probably find one or two other backgrounds and add them as well as you should definitely add some upgrades. Some suggestions would be:
- Ammo Upgrade for Guns (For example, +1 bullet for the Remington, +5 for automatic guns, none for the grenade launcher)
- Incindary ammo for automatic Guns (AK-47, if I remember right, and its friends)
- Increased damage for guns

Well, those are just examples. And too be fair, as soon as you get the grenade launcher, you almost won the game. It's pretty awesome. Another idea would be to set different reload times for different weapons, which you could balance with certain upgrades.

For this game, I would recommend to give the character some mechanics skills instead of some kind of shops. Well, after all this are just some suggestions. Hope this will help you a bit with future games.

Great game!
Pros: Awesome guns, cool looking zombies, music loop wasn't annoying as it usually is in games, had a real feel to it that really sucked you in.
Cons: Upgrades of barricade, upgrades of ammo(hollow point, incindary, etc.), perks like steady aim, no reload for a certain amount of time, etc.
All in all, a great game. Definitely worth a play.

Fun game - It seems Levi's was making a killing before the Zombie Apocalypse. Never seen so many blue jeans in my life.

Very well done, the zombies really put the pressure on and you need to learn how to prioritise and manage your weapons properly to stay alive. I was a little frustrated at not finding a single survivor until the second area (is that normal?) but them's the breaks, I guess.

Just a few things about the combat:
a) Why does switching weapons take as long (if not longer) than reloading? Seems like it should be something you can do really quickly. Also, if you only have access to 2 weapons having one button that switches between them makes more sense than a button for each.
b) I'd like something that shows me which firing mode I'm in please, rather than wasting a bullet to find out or having to remember. What do you think about taking away the barrier health indicator? Maybe replace it with messages popping up every 10% or so telling you the barrier is in trouble. It just seems kind of silly that we have a psychic connection to the barricade that tells us how strong it is but we don't know the position of one little switch on the gun in our hands.

The Last Stand is an awesome game, and this seems like that but with a different view in combat, and with the difficulty ramped up to 11. So still awesome =D