Im a wee bit confused. How do I play? I try to enter the building but it gets too dark. If i'm outside the monster is too fast. How do I do it?
The key is that you need to find and use the flashlights scattered around the house. Right-click these and you will see your battery meter go up in the top-right. You need to turn on your flashlight at nighttime with 'F' so that you can see, run, and hide.
If you run out of battery during the night, the monsters will be alerted to your position. So don't let that happen!