1. If a nice, sunny day turns into a foggy or rainy scenery for no apparent reason and in less than one minute.

2. The city/town you are in is empty, except for those zombies, crazy cult-members and other un-natural beings running around.

3. No matter whose refrigerator or medicine storage you look into, there will always be a health drink or a first-aid kit.

4. Related to number 3, there will be no edible food to be found, but that's okay, because here you can survive without food, water or sleep for days!

5. If you see a child running around, s/he is most likely already dead and spends his/her time drawing freaky pictures, making you do stupid things and making fun of you.

6. If you try to get in contact with the said dead kid, they'll run from you and talk weird stuff if you talk to them.

7. You'll notice that if there are any living people around (and let's include the dead kids in this section as well,) none of them are hurt in any way and monsters won't go even near them unless they're going with you.

8. No matter where you go, there will always be weapons and ammunition at hand.

9. If you're a local, your parents (or at least one of them) are absolutely connected to the local cult that sacrifices people to maintain its peace.

10. You will note that the city/town will have a catholic church and there will always be someone in the confessioning box (hope you know what I mean), ready to tell you their darkest secrets without seeing anything weird about the old priest suddenly becoming a young stranger.

11. All the local dogs are of the same race. Even after their deaths.

12. If you're a man there will always be a hot girl in trouble that you need to rescue and drag along; in worst case scenario, you'll have to make sure she doesn't die along the way. If you're a woman, you'll have to manage on your own.

13. Everyone's white, and the one black guy will be eaten by some monster within 24 hours.

14. Hospitals are covered in blood, most doors are locked and there are mutilated bodies everywhere. You might also hear some screams coming from the other side of the wall.

15. If you go to a playground, you will hear little kids chanting something, but you'll never actually get to meet the kids.

16. If you're wounded, no problem! Even if someone drills through your leg, you'll be able to walk just fine.

17. Everyone, even you, knows how to use a gun and what you should do in close-range combat, or any combat for that matter.

18. There will be more dead nurses than there have ever been living nurses in the first place.

19. You will get sudden headaches that make the world very gory and whenever you pass out, you will wake up completely unharmed, no matter how many monsters are running around looking for their next meal.

20. By the time you finally get out of this mess, you're the only one still alive or then you and your dumb sidekick (the girl if you're a guy) both made it. You won't get to have sex with her though. Bummer, isn't it?