Store Page
DOOM + DOOM II
All Discussions Screenshots Artwork Broadcasts Videos News Guides Reviews

DOOM + DOOM II

Store Page
DOOM + DOOM II > Guides > slyfuldragon's Guides
626 ratings
How to run Project Brutality/Brutal DOOM on Steam for Windows! (UPDATED)
By slyfuldragon
This guide is to help you getting Brutal Doom to run through Steam for updated version of DOOM or the newly released DOOM + DOOM II version
It's very simple actually.
5
4
15
4
2
   
Award
Favorite
Favorited
Unfavorite
Created by
slyfuldragon
Online
Category: Game Modes, Gameplay Basics, Maps or Levels, Modding or Configuration, Multiplayer, Walkthroughs
Languages: English
Posted
Updated
9 Jul, 2015 @ 7:20am
28 May @ 4:48am
24,602 Unique Visitors
1,005 Current Favorites
Guide Index
Overview
Getting Started 
Project Brutality; GZDoom (post April 10th 2025 update) 
Project Brutality; GZDoom (pre April 10th 2025 update) 
Visual Guide (pre April 10th 2025 update) 
Comments
Getting Started
What you will need

*NOTE #1: This updated DOOM + DOOM II contains both versions.Please reference the visual guide as this is meant for the DOS version that has been packaged with the re-release update.
*NOTE #2: Please reference which version (pre or post April 10th 2025 update) you have. This will determine how you need to proceed with Step 8 of either guides.

▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂

Project Brutality (For GZDoom only)*
  • Project Brutality 3.0 (most recent version is located here [github.com].
  • Latest GZDoom v4.5.0 here [zdoom.org]
  • Doom WAD files and folders
* - note that you will need to run either Brutal Doom or Project Brutality, you cannot run both otherwise you will come across crashes
▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂

This is the updated guide from the guide that was created for the older versions: here
Project Brutality; GZDoom (post April 10th 2025 update)
  1. Have Doom purchased through Steam.
  2. Download the latest version of Project Brutality (currently 3.0)
  3. Download the latest version of GZDoom (currently v4.14.2)
  4. Install Doom then locate the folder in explorer (Steam/steamapps/common/(Ultimate Doom)/dosbox
  5. Open the GZDoom 7zip file you downloaded [e.g. gzdoom-4-12-2-Windows-64bit.zip]
  6. Open /dosbox folder (if you are in the Master Levels of Doom folder you will not see a /base folder. That's ok, just apply the following steps below in that folder -- as if you are treating it like it's a /dosbox folder)
  7. Copy all files from the GZDoom zip folder to your Steam Doom /dosbox folder
  8. April 10th 2025 UPDATE: Locate the Launcher.exe executable within the /dosbox folder, you will now need to delete Launcher.exe then rename gzdoom.exe to Launcher.exe
  9. Go to the GitHub Repository for Project Brutality 3.0 in the "Getting Started" Section
  10. Click on the Green Button that is labeled as "Code"
  11. Download as ZIP
  12. Once downloaded, rename "Project_Brutality-master.zip to "Project_Brutality-master.pk3 (it's important that you have File Name Extensions checked; in File Explorer, click the Ribbon dropdown > Go To View tab > Under Show/hide section > Make sure the "File Name Extentions" checkbox is enabled/checked)
  13. Copy/Move "Project_Brutality-master.pk3 over to the '/dosbox' folder located within the doom steam folder
  14. Run the game once to have the gzdoom-(YourPCUserNameHere).ini created automatically.
  15. Open the 'gzdoom-(YourPCUserNameHere).ini' and scroll down to where you see [doom.Autoload]
    *NOTE: If the .ini file is not in this folder once you have launched the dosbox version of GZDoom, then it might be located in the following path: Documents»My Games»GZDoom. It may simply be named: gzdoom.ini (without your username).
  16. Type or Copy/Paste Path=Project_Brutality-master.pk3 right under [doom.Autoload], [doom.id.Autoload] and/or [doom.id.doom2.Autoload] if the autoload doesn't work for doom
  17. Rinse and repeat for however many Doom games you want to apply this to (The Ulitmate Doom, Doom II, Final Doom, and Master Levels of Doom)
  18. "Play" Doom through Steam, you will need to select the "Launch DOS version", and you will have Brutal Doom automatically loaded
  19. Enjoy

* - note (again) that you will need to run either Brutal Doom or Project Brutality, you cannot run both otherwise you will come across crashes
Project Brutality; GZDoom (pre April 10th 2025 update)
  1. Have Doom purchased through Steam.
  2. Download the latest version of Project Brutality (currently 3.0)
  3. Download the latest version of GZDoom (currently v4.14.2)
  4. Install Doom then locate the folder in explorer (Steam/steamapps/common/(Ultimate Doom)/dosbox
  5. Open the GZDoom 7zip file you downloaded [e.g. gzdoom-4-12-2-Windows-64bit.zip]
  6. Open /dosbox folder (if you are in the Master Levels of Doom folder you will not see a /base folder. That's ok, just apply the following steps below in that folder -- as if you are treating it like it's a /dosbox folder)
  7. Copy all files from the GZDoom zip folder to your Steam Doom /dosbox folder
  8. Delete dosbox.exe, then rename gzdoom.exe to dosbox.exe
  9. Go to the GitHub Repository for Project Brutality 3.0 in the "Getting Started" Section
  10. Click on the Green Button that is labeled as "Code"
  11. Download as ZIP
  12. Once downloaded, rename "Project_Brutality-master.zip to "Project_Brutality-master.pk3 (it's important that you have File Name Extensions checked; in File Explorer, click the Ribbon dropdown > Go To View tab > Under Show/hide section > Make sure the "File Name Extentions" checkbox is enabled/checked)
  13. Copy/Move "Project_Brutality-master.pk3 over to the '/dosbox' folder located within the doom steam folder
  14. Run the game once to have the gzdoom-(YourPCUserNameHere).ini created automatically.
  15. Open the 'gzdoom-(YourPCUserNameHere).ini' and scroll down to where you see [doom.Autoload]
    *NOTE: If the .ini file is not in this folder once you have launched the dosbox version of GZDoom, then it might be located in the following path: Documents»My Games»GZDoom. It may simply be named: gzdoom.ini (without your username).
  16. Type or Copy/Paste Path=Project_Brutality-master.pk3 right under [doom.Autoload], [doom.id.Autoload] and/or [doom.id.doom2.Autoload] if the autoload doesn't work for doom
  17. Rinse and repeat for however many Doom games you want to apply this to (The Ulitmate Doom, Doom II, Final Doom, and Master Levels of Doom)
  18. "Play" Doom through Steam, you will need to select the "Launch DOS version", and you will have Brutal Doom automatically loaded
  19. Enjoy

* - note (again) that you will need to run either Brutal Doom or Project Brutality, you cannot run both otherwise you will come across crashes
Visual Guide (pre April 10th 2025 update)
535 Comments
< >
Shadow Song is back! 18 Jun @ 7:15am 
weird, i got the same error as lord argo, even tried reinstalling but to no luck.
slyfuldragon  [author] 18 Jun @ 7:04am 
It works with the latest (GZDoom v4.14.2 - Primary | 2025-05-03).... I had just tried it on June 4th with Lord Argo troubleshooting
Shadow Song is back! 18 Jun @ 6:28am 
yeah it doesnt seem to work with the newest gzdoom version, it launches just fine with 4.11.3
slyfuldragon  [author] 13 Jun @ 1:47pm 
It sounds like when you launched GZDoom you didn't go to Options tab and uncheck "don't ask me again." and selected Doom 1 when you launched it.
You might have to blow out the GZDoom config.
Lord Argo 13 Jun @ 8:48am 
Ok so I uninstaled everithing and re instaled, and now i works but it only launches Doom 1. Im like ?????
slyfuldragon  [author] 5 Jun @ 7:28am 
I kind of accounted for that; then I'd follow what the error suggests
Lord Argo 5 Jun @ 7:11am 
Thats weird because I dont think i have any other mod instaled.
slyfuldragon  [author] 4 Jun @ 4:50am 
That appears to be a conflict between mods. I would try deleting everything pertaining to this, updating GZDoom and Project Brutality to the latest and try with only those two mods first. If that still happens between only the two, I would suggest using GZDoom 4.11.3 like the error suggested.
Then add on others to see what conflict. Sorry I can't help further (not being the mods' creator)
Lord Argo 4 Jun @ 4:27am 
Followed all of the steps for the post APRL 10, 2025 update. Almost done but I have this weird issue upon launching the game. (upon launching doom 2 hell on earth in DOS version)
https://ibb.co/j9FhsFtd
slyfuldragon  [author] 30 May @ 10:20am 
You can possibly do a screen recording and share the process, if you'd like but I'm afraid I can't help further without it having gone through the tutorial 3 times since updating it to make sure I didn't miss anything. I apologize.