You manage to build a time machine and you take it for a test run. Things go well and you end up in the future. You realize that there was some kind of zombie disaster and that planet is filled with zombies. You also notice that your fuel is almost empty. Your goal is to gather as much of zombie blood as possible. You can also retrieve guns from the past using your time machine - of course, it requires fuel!
After downloading the .zip file, you need to unzip it. You should already have the software to do so. If not, you can download 7-zip. After unzipping...