A new community developed fork of Doom Builder 2 has been released! ZDoom community member ZZYZX has worked to take everything that made Doom Builder 2 and GZDoom Builder great and put everything into an even more improved tool called Ultimate Doom Builder.
You can check out the original forum post below. It includes features, system requirements, and more information if needed.
Downloading Ultimate Doom Builder
Installing Ultimate Doom Builder
Start by running the installation. If you are running Windows 10, you might have some security prompts depending on your security settings. Just click through the first one by selecting “More info” and “Run anyway”.
You may get another UAC prompt. Just click Yes.
Now click through the installation. Decide where you want the installation destination to be and if you want a desktop shortcut or not.
Congrats! UDB is now installed.
Easily Update Ultimate Doom Builder to the Latest Version
Software that automatically updates software for you is the best. Thankfully, if UDB has admin rights, it will automatically do it for you.
Right-click your UDB icon and select “Run as administrator” and select “Yes.”
UDB will automatically know it has Admin privileges and prompt you to update to the latest version. Press the “Update” button.
Congrats! Happy mapping!