Ultimate Doom Builder

What Ultimate Doom Builder is

Ultimate Doom Builder is a map editor for creating and editing levels for games based on Doom, Heretic, Hexen, and Strife. Its editing workspace covers both 2D and 3D views, with tools for shaping terrain and placing entities. The editor works best with ZDoom-family ports, while also supporting classic engines, making engine compatibility an important consideration when choosing a build or planning a map project.

The project offers a free plan at no cost, with no free trial. It supports Windows and Linux. For most users, the project recommends the 64-bit version because it has fewer limits on project size; a 32-bit build is available for older PCs. Windows requirements include Windows 7, 8, 10, or 11, Microsoft .NET Framework 4.7.2, and a graphics card that supports OpenGL 3.2. Linux building is experimental, and users may need to troubleshoot without developer support. The README documents a Flatpak build and installation route. For further guidance, users can consult the editor reference manual, Refmanual.chm; the project also links to an official forum thread and Git builds hosted by DRDTeam.org. The repository identifies the license as GPL-3.0.

Who it suits

Ultimate Doom Builder suits people making or editing maps for Doom, Heretic, Hexen, or Strife-based games who need 2D and 3D views, terrain tools, and entity placement. It is especially suited to users working with ZDoom-family ports, and Windows users whose systems meet the listed requirements.

Limits

The free plan is listed as free. The project recommends x64 because it has fewer limits on project size; x86 is available for older PCs. Linux building is experimental and may require troubleshooting without developer support.

Getting started

1. Visit https://ultimatedoombuilder.github.io/.
2. Choose the x64 build for most users, or x86 for an older PC.
3. On Windows, confirm the system is Windows 7, 8, 10, or 11 and has .NET Framework 4.7.2 and OpenGL 3.2 support.
4. On Linux, follow the documented Flatpak build and installation route; Linux support is experimental.
5. Consult Refmanual.chm for more detailed editor information.

Verdict

Choose Ultimate Doom Builder if you need a free editor for maps in Doom, Heretic, Hexen, or Strife-based games, with 2D/3D editing and terrain and entity tools. Its broadest fit is with ZDoom-family ports. Look elsewhere if you need dependable Linux support, since Linux building is experimental and may require unsupported troubleshooting.