How to overcome fear?

tl;dr

Face your fears head on and watch scary movies. You'll be desensitized in no time. Then play the hardest difficulty.

That kind of beats the point of the game.

Quit being a little bitch!

Sing. Loudly.

Edit: Suggestion

A good way to overcome fear is through controlled and repeated exposure. This is not a fun method, but it is very effective.
Alternatively, consider not playing games that are too scary ;)

is lone survivor so scary? I need it!!

Brightness at 100%, lights on, headphones off, and play happy music.

MUTE THE SOUND, PLAY IN WINDOWED MODE.

When I played the never ending staircase I listened to and sang (chanted? I don't know it was so loud I couldn't hear myself anyway) along to the Skyrim theme tune really loudly to keep myself amped.
The trick is to occupy most of your mind on something else unrelated while only a bit pays attention to the actual game.

Lot of little girls need to man the fuck up here thh, scared of a game? really? sell your pc and buy some dolls ffs.

Face it balls-on. There was a time when I was afraid to play Left 4 Dead alone at night, I had to have lights on. Now no problem. Still have some issues with Amnesia and some other games though, even if GF's right next to me, but I'm slowly working on it xD

Alcohol

Face it.

Piss yout pants, then cry out loud.
Now you fear nothing

Lone survivor? It was certainly creepy but never turn game off run around screaming scary. If it is then my god never played Eternal Darkness or Amnesia.

I don't, that's why I play these games. It's not easy to get that scared, so I enjoy it. Amnesia ❤

Although if you're scared in real life, stand up to it. It's usually not that bad as you expect and you always look like a BAMF :)

We must not ignore fear, it's a part of your humanity!

Its not a big change but it helps A LOT. Play in windowed mode

This makes me want to buy Lone Survivor. Well played Lone Survivor developper disguised as OP.

Lone Survivor wasn't scary in the slightest IMO, but if the game is scaring you that's a good thing. It's so hard to find a game that can do that these days.

The spiders in Penumbra... *shudders

Just laugh at it =D Or you can find the 3d models of monster of your game for Gmod and mock them like I did with Amnesia zombies, i could kill them in the game so I mocked them in Gmod :3

Well games have the characteristic of being immersive, maybe it's the fact that you get into it really hard.... try to play a scary game in a large tv, sitting on a couch, with your headphones on, perhaps that change of environment can help you step away a bit from that immersion and later on help you overcome that..... Just an idea.