First things last: What is Brutal DOOM and why do you want it?
You’ll need a source port to run DOOM. If you don’t know what a source port is you can read about it here. Short version: it’s a free and legal fan made version of the DOOM engine. There are a lot of great source ports out there. I use and like ZDoom so that’s what this post will cover.
Download GZDoom from the ZDoom website. Unzip it and you’re done, no install needed. If you launch it right now you’ll get a “Cannot find a game IWAD” error. We’ll cover that next.
You’ll need to buy (or obtain) a copy of DOOM. Most versions should work, I’m using the BFG edition on Steam. You can also use Ultimate DOOM and DOOM II on Steam if they’re cheaper or you don’t want DOOM 3. You don’t need 1 to play 2 but I’d recommend getting both.
The sections below are a little repetitive so they can stand on their own. The file locations are in bold and have a copy shortcut for easy skimming.
Install BFG Edition on Steam. You don’t need to launch it. In fact, I don’t recommend ever launching it.
Right click the game in steam and to go Manage > Browse local files
Open the base directory then the wads directory.
Default location is %ProgramFiles(x86)%\Steam\steamapps\common\DOOM 3 BFG Edition\base\wads
%ProgramFiles(x86)%\Steam\steamapps\common\DOOM 3 BFG Edition\base\wads
You’ll see three files: DOOM.WAD, DOOM2.WAD and NERVE.WAD. Copy all three files to the same directory as gzdoom.exe from the steps above.
Run gzdoom.exe and you’ll see both DOOM and DOOM 2 BFG editions in the IWAD selection menu. You can launch either to play vanilla DOOM or DOOM II. Skip below to Brutal DOOM WAD to setup Brutal DOOM.
Default location is %ProgramFiles(x86)%\Steam\steamapps\common\Ultimate Doom\base
Run gzdoom.exe and it either will load into vanilla DOOM or show an IWAD selection menu if you already have another WAD copied in the GZDoom directory. Skip below to Brutal DOOM WAD to setup Brutal DOOM.
Default location is %ProgramFiles(x86)%\Steam\steamapps\common\Doom 2\base
Run gzdoom.exe and it either will load into vanilla DOOM II or show an IWAD selection menu if you already have another WAD copied in the GZDoom directory. Skip below to Brutal DOOM WAD to setup Brutal DOOM.
Download the latest copy of Brutal DOOM on the Mod DB page. The Doom Metal Soundtrack Mod is optional.
Extract the archive (brutalv21.rar at the time of this post) and copy the pk3 file (brutalv21.pk3) to the same directory as gzdoom.exe.
Drag and drop brutalv21.pk3 to gzdoom.exe and select the version of DOOM you want to use. You’ll see a third “Brutal DOOM Options” item in the menu if this worked correctly.
If you want to use the metal soundtrack hold ctrl and select both brutalv21.pk3 and DoomMetalVol5.wad then drag and drop them to gzdoom.exe
You can also launch Brutal DOOM with a shortcut instead of dragging and dropping every time.
Create a shortcut then right click and go to properties.
Add the .pk3 filename (brutalv21.pk3) after gzdoom.exe. You can add DoomMetalVol5.wad after the .pk3 file to launch both with the same shortcut.