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Fallout 4: PC fixes and tweaks

Fallout 4 hit the market earlier this week, and like a lot of Bethesda releases there are a few things that need to be helped along on PC. It's not uncommon for PC players to experience a variety of little nightmares when they start up a game for the first time, and for people concerned with having the ideal play experience check out these tips and tricks for Fallout 4 from the folks at GameSkinny.

Mouse Acceleration is a No-No

Any competitive PC gamer concerned with his aim has run across mouse acceleration before, and in a lot of games there's a slider or a setting that allows you to reduce or at least modify mouse acceleration in game.

Mouse acceleration refers to the change in movement distance of a mouse when compared to the speed the mouse is moved. With mouse acceleration enabled rapidly swiping your mouse will make your cursor move faster than if you swipe it slowly. There's nothing inherently wrong with mouse acceleration, and some gamers prefer it, but if you're the kind of gamer that's spent a lot of time developing your muscle reflexes for competitive shooters you're going to want mouse acceleration set to 0 so you don't undermine hours of reflex training.

Unfortunately, although Bethesda cleaned up the gunplay in Fallout 4 immensely, they still missed this key element. They not only built in acceleration by default, but didn't add a setting to change it in game. Players have long known this is an issue and luckily found a workaround almost immediately.

To change this setting you're going to need to change three files located in two different places.

Start by jumping to your local Fallout 4 folder by navigating to Documents>My Games>Fallout4. Inside you'll find the Fallout4.ini file as well as the Fallout4Prefs file.

The filepath should look something like this:

C:\Users\\Documents\My Games\Fallout4\

Next, open Fallout4.ini and look for the section titled Controls, pick a spot where you'll be able to easily find the values later and add:

bMouseAcceleration=0

Save and close the file and open Fallout4Prefs.ini, under Display you're going to want to add the line:

bForceIgnoreSmoothness=1

Finally jump to your install folder for Steam, which should be under Program Files > Steam> Steamapps> Common > Fallout4.

Again the Filepath should look something like this, although it might vary depending on your OS drive configuration:

C:\Program Files (x86)\Steam\steamapps\common\Fallout 4

Inside look for another Fallout4Prefs.ini and add another line under Display:

bForceIgnoreSmoothness=1

Matching your Axis

It's also worthwhile to change the vertical mouse movement in game so it matches your horizontal sensitivity. This will make sure you get true 1:1 mouse movement on screen. To do so, go back to the Fallout4.ini located in your My Games Fallout4 folder and find the value:

fMouseHeadingYScale=.021

and change the value to:

fMouseHeadingYScale=.03738

Skip the Intro

This is useful if you only have short periods of time to play and don't want to rewatch the intro every single time you start the game.

Jump back to the Fallout4.ini in your My Games Fallout 4 folder and add this line under General:

SIntroSequence=1

Free your Frames

Fallout 4 is intensive on multiple graphical levels, and unfortunately Bethesda saw fit to lock the default frame rate of the game to 60 FPS. For most single player games this is plenty, and most people won't notice the difference unless they're running ridiculously beefy builds, but if you're hungry for the sweet sweet smoothness of higher FPS there's a command to modify your frame limit.

Before you go tweaking, just be aware that Bethesda locked it there for a reason, and people have reported reduced performance and more frequent crashes at a higher FPS. Additionally it seems that the engine speed is somewhat tied to the FPS, meaning that items fall faster, weapons swing differently, and a variety of other things tick much faster -- all of which might have unforeseen consequences during time-sensitive moments in game.

To uncap your FPS, jump back to the My Games Fallout 4 folder and find the value:

iPresentInterval=1

and change the value to:

iPresentInterval=0

Expand your Horizons

Bethesda games on PC have a tendency to be somewhat claustrophobic as far as FOV goes. They're usually locked at somewhere around 70 degrees of vision: perfect for console players that sit well away from their screens but something of a headache for those of us that are glued facefirst to our screens.

Modifying the FOV involves almost the same process as changing your mouse acceleration earlier in this guide. Again you'll need to modify three files.

The first two are located in the My Games Fallout 4 folder. Start by opening the Fallout4.ini and adding under Display:

fDefaultWorldFOV=90
fDefault1stPersonFOV=90

Save and exit, then open up the Fallout4Prefs.ini and add the same under the Display section in this file:

fDefaultWorldFOV=90
fDefault1stPersonFOV=90

Finally jump to your Fallout 4 Steam Folder and open the Fallout4Prefs.ini file and add these lines under the Display section:

fDefaultWorldFOV=90
fDefault1stPersonFOV=90

You're welcome to change the 90 to whatever value you prefer, but keep in mind that this is based largely on how close you sit to your monitor. If you're particularly close to the screen you might go as high as 110, but if in doubt stick to 90.  If you find yourself suffering headaches or motion sickness after changing your FOV, consider lowering the value or changing it back to default by deleting the new lines entirely.