Uploaded the latest build of the demo, if you tried an early build and found it slow to load or that it looked garbled, try again - it's much improved!
http://www.onemoregogames.com/downloads/+I've totally switched around the loading so that more is done in parallel, it's smoother and quicker
+You can choose your resolution and FULL SCREEN.
+There are now three levels, I'm trying out a cleaner level design. One of the levels is a variation where you can build anywhere (by popular demand!!).
+The zombies now have health bars above them to show how much health they have left
Still a few bugs in there, e. you have to have LESS than 0 survivors to lose so you still have a chance to win while it shows 000. There might be a bit of a memory leak in there somewhere too so you might find the game slows down after a few levels (particularly on old machines), I recommend quitting the game and restarting if thats the case.