Install mods with Deadlock Mod Manager

Download Deadlock Mod Manager

Deadlock Mod ManagerRecommended

Adds your mods to the game and loads them again after updates.

FreeOpen sourceWindows 10 and 11Linux

DownloadGitHubDocs

WindowsLinux

1. Open deadlockmods.app in your browser.
2. Check the address bar. It must say deadlockmods.app.
3. Click Get it on your PC and download the Windows installer.
4. Run the installer.
5. Click Next until you see Finish, then click it.

Follow the official install guide. It lists Flatpak, AppImage, .deb, .rpm, and other packages.

Set up on first launch

The first time you open DMM, a setup wizard checks your setup. You can skip it.

1. Open Deadlock Mod Manager.
2. Read the notice that mods are third-party content. Tick the box and click Next.
3. Check that DMM found your Deadlock folder. Click Next.
4. Choose Automatic on the download server screen. Click Next.
5. If DMM says it found existing mods, read that screen carefully. Then click Next.
6. Choose whether to share anonymous usage data. Click Finish.
7. Look at the status bar. It should show the API as online and the game as ready.

If the wizard asks about match data sharing, read Privacy: Match Data Sharing first.

If DMM did not find the game, open SettingsGameSettings, then Game and set the path to the Deadlock folder itself, not game or citadel. The default is C:\Program Files (x86)\Steam\steamapps\common\Deadlock.

Add a mod

Download the mod's file first. It is a .vpk file, or a .zip, .rar, or .7z archive with a .vpk inside. Mods not updated since the City Never Sleeps update (September 29, 2026) may be broken.

1. Open Mods Library in the sidebar.
2. Click Add Local Mod.
3. Drop the mod's file into the upload area, or click the area to pick the file.
4. Type a name for the mod. Only the name is required.
5. Add the mod to your library.

Look inside an archive before you add it. A real mod never holds an .exe, .dll, .bat, .ps1, or .scr file. If yours does, delete the download.

Turn mods on and set the order

1. Open Mods Library.
2. Turn on each mod you want to use. New mods start switched off.
3. Read the warning if DMM says two mods change the same hero. Choose which one to keep, or keep both.
4. Open Change Mods Order to pick which mod wins when two mods change the same file.

Mods that change different files work together in any order. DMM also has profiles: separate sets of mods you can switch between.

Launch with or without mods

1. Click Launch Modded.
2. Click Continue on the prompt.

The first time, DMM edits the game's gameinfo.gi file so Deadlock loads your mods. After that, Deadlock starts with mods even from Steam.

To play without mods, click Launch without mods in DMM, or use Disable all mods.

Custom map mods can stop you from loading the normal map or joining matchmaking. DMM warns you before launch. Use Disable Map Mods & Launch before a normal match.