Really enjoyed the game. There were a lot of mechanics, but it didn't seem overwhelming. Liked the design and the pacing. The scavenging mechanic was cool, but I found that you didn't really need it. It would be cool if there were a really apparent benefit to scavenging, so that there would be more tension between having more defenders, but fewer people scavenging. It's still a great idea, though.
I wish there were a save game mechanic, even if only to revisit the endings. Overall, it was awesome. Keep it up!