Zandronum Quick Setup

May 18, 2026

This is a quick guide on how to set up and play Doom multiplayer via Zandronum.

  1. Obtain base game files. (doom.wad and doom2.wad)
  2. Download and install Zandronum & Doomseeker.
  3. Open Doomseeker. (link should be on your desktop)
  4. Go to Options → Configure.
  5. In File Paths select a folder for the base game files.
  6. In Wadseeker select a folder for downloaded mods.

Done!

Troubleshooting

I can't configure file paths.

Your options should look like this

How to configure Doomseeker file paths
Interface is too small.

If you prefer the old-style bottom bar press plus/minus key on your keyboard to adjust it. And for general interface options go to HUD options and tick the stretch fullscreen hud option.

How to increase HUD size in Zandronum.

For chat text go to HUD options → Message Options → Text Scaling. Tick the enable text scaling option on and set the virtual width and height.

How to increase message text size in Zandronum.
It's hard to navigate large levels.

The automap by default is bind to Enter key. You also can go to automap options and set the overlay automap option.

How to set automap overlay in Zandronum
How to display the game on my other monitor?

Open in-game console and enter "vid_listadapters" command to view the list of your monitors. Then enter "vid_adapter" command to set your main monitor.

Why using this specific sourceport?

Zandronum has better mod support overall and allows doing some fun things like this: