Simple game and a bit of a one-trick pony, but it's a great way of wasting time on a rainy afternoon. There's no exit from the game as yet and death is an inevitability, but it's looking promising and the developer is a very easy chap to talk to and is pretty quick to respond to emails. The only snag on my rapidly-ageing iMac is that the great mob of zombies towards the end of the cycle tends to overwhelm my system; if you have a newer Mac. than mine you should be fine. It's a "run, point, shoot and run again" kind of game that has a lot of charm about it. I'm looking forward to seeing the destination to which the dev is taking it. Five stars because it's fun and it's free - what more could you want?