Infectonator

Infectonator is really a very branched game. It has an old pixelstyle graphics with matching sounds. The gameplay is easy, but its also a lot of fun in between meals. You have to find a victim, the the one you poison and infects others with the virus to make them a zombie. Some infected will try to stop you, reach there and stop them before they are successful at this. However collect the beautiful money so that you can buy upgrades after each level.