I played the original two games on Kongregate back in the day they were a great way to pass the time. Rebuild 3 only improved on the game-play Sarah Northway and her team are very talented people. The visuals, combat, and story are all great and it's easy to get lost playing this for hours. The only negative things I have to say about this game is that the difficulty spikes are absolutely insane. Starting a game on hard mode is one hell of a challenge it's almost impossible the zombies attack with such ferocity and frequency and they player has no time to recover. I'd recommend not playing on hard unless you have a very firm understanding of the game mechanics. All in all it's a great game that improved on the two previous titles in all aspects I highly recommend on sale or not it's a good buy.