Ultimate Doom Builder
Ultimate Doom Builder is a free map editor for games based on Doom, Heretic, Hexen, and Strife.
What Ultimate Doom Builder is
Ultimate Doom Builder is a free map editor for games based on Doom, Heretic, Hexen, and Strife. It supports both 2D and 3D map work, with tools for terrain and entity placement. The editor works best with ZDoom-family ports and also supports classic engines. The project recommends the 64-bit build for most users because it allows larger projects; a 32-bit version is available for older PCs. Windows requirements include Windows 7, 8, 10, or 11, Microsoft .NET Framework 4.7.2, and a graphics card with OpenGL 3.2 support. Linux builds are described as experimental, and users may need to troubleshoot without developer support; the project documents packaging and installation through Flatpak. The README points to the Refmanual.chm editor guide and links to an official forum thread and Git builds hosted by DRDTeam.org. The repository identifies the license as GPL-3.0. The download page lists version R4332, dated 06 Oct 2026.
Good
- Free, with no trial required.
- Supports 2D and 3D map editing.
- Includes terrain and entity placement tools.
- Supports ZDoom-family and classic engines.
Watch out
- Linux building is experimental.
- Windows requires .NET Framework 4.7.2.
- The project recommends x64 for most users.
Who it suits
It suits people making maps for Doom-family games, especially those using ZDoom-family ports. Linux users should be prepared for experimental support.
Verdict
Ultimate Doom Builder covers core map-making tasks across several Doom-family games and engine types. Check the platform requirements first, particularly if using Linux or an older PC.
Plans and prices
From Ultimate Doom Builder's own pricing page, checked 8 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Ultimate Doom Builder | Free | 64-bit version recommended · 32-bit version for older PCs |
The facts
Each one read from Ultimate Doom Builder's own pages, with the date it was checked.
What it does
- 32-bit build
- The x86 version is available for compatibility with older PCs.checked 8 Oct 2001
- 64-bit build
- The project recommends the x64 version for most users because it has fewer limits on project size.checked 8 Oct 2001
- Documentation
- The README points users to the editor reference manual, Refmanual.chm, for more detailed information.checked 8 Oct 2001
- Engine support
- It works best with ZDoom-family ports and also supports classic engines.checked 8 Oct 2001
- Graphics requirement
- The README specifies a graphics card with OpenGL 3.2 support.checked 8 Oct 2001
- Integrations
- The project links to an official forum thread and to Git builds hosted by DRDTeam.org.checked 8 Oct 2001
- Latest release
- The official download page lists version R4332 dated 06 Oct 2026.checked 8 Oct 2001
- License
- The GitHub repository identifies the project license as GPL-3.0.checked 8 Oct 2001
- Purpose
- Ultimate Doom Builder is a map editor for Doom, Heretic, Hexen, and Strife based games.checked 8 Oct 2001
Where it runs
- Linux packaging
- The README documents building a Flatpak package and installing it with Flatpak.checked 8 Oct 2001
- Linux support
- Linux building is described as experimental, and the developers say Linux users may have to troubleshoot without their support.checked 8 Oct 2001
- Windows requirements
- The README lists Windows 7, 8, 10, or 11 and Microsoft .NET Framework 4.7.2 as requirements.checked 8 Oct 2001
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