Earth has been invaded by aliens, you are on the run when you team up with your neighbour and decided to fight back. But, can you win? Or better yet, stay alive?
If you make the right choices, you will continue ahead, but if you make the wrong choices, it will be GAMEOVER. Yes, this is also known as a Game Book. So you get to decide what happens next, and also how the story ends.
Remember, there are multiple endings that you can achieve. Some are good, some are bad and some are neutral.