The Nexus Mod Manager (NMM) is a free and open source piece of software that allows you to download, install, update and manage your files through an easy to use interface. It integrates with the Nexus sites to provide you with a fast, efficient and much less hassled modding experience.

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0.63.14 Latest version

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1-click download, 1-click install
One click on the site starts your download. One click in the manager installs the file in to your game. No faffing about with zip programs, no hassle
Built in download manager
The mod manager comes with full download pause and resume functionality. Stop your downloads and start them again later from the same place. Never receive an incomplete download again
Mod manager
Enable or disable the files you would like loaded in to your game through the easy to use mod management system
Clean mod installs
Files are installed cleanly, and if a mod can't finish installing for any reason the mod manager will clean up properly after itself
Open source
Completely free and completely open source, released under a copy-left GPL license, you can be sure that the mod manager is safe to use and free of adware, spyware and viruses. Visit our GitHub page
No advertising
The Mod Manager is completely free of advertisements

Works on...

Fallout 4
Fallout New Vegas
Fallout 3
Skyrim Special Edition
The Witcher 3
Dragon Age
Dragon Age 2
Dark Souls
Dark Souls 2
Dragon's Dogma: Dark Arisen
World of Tanks
War Thunder
No Man's Sky
X: Rebirth
The Witcher 2
State of Decay
Legend of Grimrock
The Elder Scrolls Online

Open Beta

We cannot stress enough that we are still in the beta stage of NMM. NMM is in a very good state and will be usable by nearly everyone, but Beta stages are typically used for testing and bug fixing, and some of you will find bugs.

We are using a bug tracker system on our forums that allows you to post any bugs you might have with NMM. We cannot fix a bug if you do not report it! Using the tracker system is as intuitive as making a post on a forum, and you can login to it using your Nexus username and password.

We also have a beta test subforum that contains all the information you need to know to get started, report bugs and help us with development of NMM.


We don't want to make you think that NMM is the solution to your problems getting 1,000 mods to all work together right now. It's our aim to to reach that point and it's what we're working towards. However, even simple mods can be a complex business and trying to get many mods to all work together is something people in the community have been working hard to do since the start of this community. NMM is designed to make your life downloading, installing, updating and managing mods easier, but it will not currently be the wonder pill that will make all your conflicts and compatibility issues disappear. Load orders, conflicts and compatibility issues still exist with NMM at this time.

Mods may not work for a number of different reasons, and not all of them are the fault of NMM or the mod author who created the mod(s). Please remember this before you verbally abuse us, or the file authors, for not being able to get your mods to work.

Having said that, development is ongoing with NMM to make these difficult aspects of modding as easy to overcome as is possible within the limits of the game. We are working hard to not only ensure these issues are mitigated as much as possible within NMM, but also to ensure our program is compatible with any other tools and utilities you might use at the moment to deal with them.

Open Source Development

Built from the ground-up using knowledge working on the Fallout Mod Manager (FOMM) software, NMM is a completely new mod management program that attempts to make downloading and installing modifications easier for all users of the Nexus sites. We are releasing NMM as a completely open source piece of software under the copy-left GPL license. This means all the code that makes NMM work is open for you to view, edit, modify and even use, so long as you follow the GPL license. Similarly it means we can work with and cooperate with other open source tools and utilities made within the community, and outside of it as well.

We are a modding community and we wouldn't be here if it wasn't for people sharing their work with others, be it the game developers sharing their toolsets with us, programmers sharing their utilities or mod authors sharing their work. Without people sharing their knowledge with others we would have nothing, and that's why releasing our code as open source is important to us. It means that:

  • You can trust that what you're installing has no hidden files, no spyware, no adware and nothing nefarious
  • You can modify and use the source code in whatever way you wish, so long as it adheres to the GPL license
  • You can help us with the development of NMM through our GitHub page, or create your own tools and utilities that work in conjunction with NMM
  • Rather than only having a small team of closed developers working on the program, anyone and everyone can help contribute with their own skills and ideas
  • NMM is a community-driven project based on sharing knowledge with others, rather than coveting it and using it to turn a profit

If you are interested in helping us to expand NMM and make it better for everyone then please visit our GitHub page, which also contains the code and SVN details.

If you come across other programs that do a similar thing to NMM, ask the authors why they haven't made it open source yet.