Your farm are under attack! Pick up your weapon to defend your enemy. Your enemies possible will be wolves, ritualistic cultists and the military from United State! It's not obvious what exactly has prompted such a conflict, but all of your enemies seem to be after the same thing: your livestock - or more specifically your sheep.
Keys 1,2,3,4 can be used to switch between weapons quickly.
Use the mouse to shoot your enemies.
Research upgrades and new technology by clicking on the research tier buttons.