Infectonator World Dominator
In this game your goal is to spread the virus that will turn everybody into zombies. You can infect people clicking on them. When they become zombies they can infect more people touching them.
Instructions:
Some people cannot be infected in one click. Others have special abilities like shooting zombies etc. You have some tricks up your sleeve too. You not only infect people the normal way, but can use special stuff like bombs and similar.