Fallout 3 mouse acceleration fix not working!!!!

[Orange Juice]

Okay so, Fallout 3 is one of my all time favorite games and i just recently joined the master race so i decided to pick it up. Long story short this acceleration in game menus renders the game nearly unplayable with a keyboard & mouse. I've also purchased Fallout: New Vegas and had the same issue, the only difference is that when i edited New Vegas' .ini file and added those four lines under [controls] it actually solved the problem! However no matter what i do to Fallout 3, it won't work. Feedback would be greatly appreciated, my OS is Windows 10 if that helps.

[Belanos]

Are you sure you're adding it to the right ini file? It's the one found in Documents/My Games/Fallout 3. And are these the lines you're adding?

fForegroundMouseAccelBase=0
fForegroundMouseAccelTop=0
fForegroundMouseBase=0
fForegroundMouseMult=0

[Orange Juice]

Yes, im positive im adding it to the right file. I've added the lines there and they've done nothing they're just sitting there in my .ini. I tries turning vsync off because that helped in FNV but it just removed the lag -another game breaking issue- but not the accel. :( Thank you for your response!

[Tosse]

Did you ever find a fix? I'm dealing with the same issue.

[Henry-NYC]

Originally posted by Rain:

Did you ever find a fix? I'm dealing with the same issue.

This is potentially a very complicated issue. There is no universal resolution. Even if OP found a solution in 2017, that solution may or may be usable to someone else.

How so? Why?

That's because we all want our mouse cursor to be both fast and accurate, but the two wishes conflict with each other. As a result, different software/hardware may try to control the same physical mouse in different, possibly conflicting ways, causing unpredictable results - this is why we may run into such an issue that a mouse cursor simply moves way too fast and its accuracy becomes unacceptable.

In general, if we have a dedicated gaming mouse (such as one from SteelSeries), we should let the manufacturer's mouse drive take full control as much as possible.


My case: I checked my default.ini files. I don't have any of those lines that were listed in the previous post. Obviously, I don't need those lines and they are technically optional.

I have two gaming mice: one is a Logitech Pro-X superlight FPS mouse, the other is a RPG mouse with about 15 customizable buttons. The two mice don't work with Fallout 3 the same way. I prefer the cheaper RPG mouse, as Fallout 3 is not a true shooting game.

Here is what I did after installing Fallout 3 the last time: I minimized the mouse sensitivity in Windows as well as in Fallout 3. Then I increase the mouse DPI as much as possible. To play Fallout 3, my RPG mouse is set to run at either 11,000 DPI (more responsive, better for fast-paced gameplay and VATS) or 5,500 DPI (more accurate, better for slow exploring and non-VATS combat).