Running Borderlands 3 Mods

Modding in Borderlands 3 is a bit different from how you might be used to dealing with mods in BL2/TPS. You will not be using BLCMM to manage your mod list, and you won’t be using a console to run any exec commands.

Instead, BL3 modding requires that a program modifies the hotfixes that are being sent from Gearbox, and so another program has to get in the way and do that. This is where B3HM (Borderlands 3 Hotfix Merger) comes in!

B3HM (Borderlands 3 Hotfix Merger)

B3HM is a tool written by c0dycode to merge in custom hotfixes for BL3 to pick up. It’s available either as a standalone EXE, or as a DLL which you can inject in a variety of methods. You can find B3HM in these locations:

• B3HM at Nexusmods
• B3HM at Github Releases

The B3HM project has documentation right at its github page.

For the DLL version, it’s recommended that you use FromDarkHell’s BL3DX11Injection/PluginLoader to inject the B3HM into the Borderlands 3 process. For the EXE version, just download the EXE and give it a run.

See the B3HM documentation for further information about how to use the app! There’s also an easy-to-follow HOWTO about running PluginLoader + B3HM, written by FromDarkHell, and a tutorial video by FromDarkHell:

Finding Mods

For information on where to look for BL3 Hotfix mods, check out our Finding BL3 Mods page.

Info for Linux Users

Borderlands 3 doesn’t have a native Linux version, but Linux users have been able to run BL3 via proton for some time now. Unfortunately, with the limited testing done so far, we’ve not had much success getting B3HM running in that environment.

Fortunately for Linux users, there’s an alternate method which has been available for some time now, although it requires quite a bit more manual setup than B3HM does. Check out apocalyptech’s bl3hotfixmodding repo for a general overview of the technique, and a mitmproxy-based script to handle loading mods and getting the hotfix injection working right. That page doesn’t go into all the details necessary to get mitmproxy up and running for this purpose, but feel free to ask apocalyptech about it in Shadow’s Evil Hideout.