To shoot click your key pad or mouse. To move around use the arrows and wasd. Story: the end (or at least what you call it) started when a large amount of a experimental fluid leaked into the water supply this subsequently led to the turning of all humans that drank it. you learned of this leak and did not drink the water, but others weren't so lucky now you have to survive and just keep on shooting.
added some updates like better models and most of the stuff I made though credit to CaxtonTopFloor2012 for the original code. my brothers did the voice acting. all art by me.