Objective: Install Homebrew

1. Open Terminal
2. Run this: /bin/bash -c “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)”
3. Await install completion

Objective: Install Innoextract

4. Run this in Terminal: brew install innoextract
5. Await install completion

Prepare folder and file
6. Create a game folder in your download folder (e.g. “UltimateDoom”)
7. Download Game files via the “Download Offline Backup Game Installers”
8. Place the downloaded exe file in the gamefolder (e.g. “setup_the_ultimate_doom_1.9_(28044).exe”)
9. Delete the last part of the setup file name so you don’t have paranthesis (e.g. “setup_the_ultimate_doom_1.9.exe”)

Extract exe with Innoextract
10. Run this in Terminal to open the folder: ~/Downloads/*GameFolderName*/ (e.g. cd ~/Downloads/UltimateDoom/)
11. Run this to extract the exe: innoextract FileName.exe (e.g. innoextract setup_the_ultimate_doom_1.9.exe)

DONE! Use wads as you like.

For follow up extracts start from step 6.

Let me know if this was helpful.