Mapster32
Mapster32 is a tool for creating Duke Nukem 3D maps in .MAP files.
What Mapster32 is
Mapster32 is a tool for creating Duke Nukem 3D maps in .MAP files. It is part of the EDuke32 project and is included with EDuke32 at no cost. The editor is described as an advanced upgrade of the original BUILD Editor shipped with the game. Its two modes serve different map-making tasks: 2D mode supports layout and object placement, while 3D mode lets users edit textures, heights, and shading. The level editing guide also identifies NAM, WWII GI, Redneck Rampage, and other games as possible projects. Mapster32 supports scripts in a language derived from CON, which can be loaded as .m32 files or entered through the editor console. It can check loaded maps for corruption and try to repair some cases, though serious corruption may require manual expert resolution. The EDuke32 project lists Windows, Linux, and macOS as supported platforms.
Good
- Included with EDuke32 at no cost
- 2D mode handles layout and object placement
- 3D mode edits textures, heights, and shading
- Can check maps for corruption
Watch out
- Some serious map corruption needs expert resolution
- Requires working with .MAP files
Who it suits
Mapster32 suits people creating Duke Nukem 3D maps and those making levels for the other games listed in its guide. Its 2D and 3D modes support layout, placement, and visual editing tasks.
Verdict
Mapster32 provides distinct 2D and 3D editing modes, scripting, and map checks for compatible projects. Its map repair capability has limits when corruption is serious.
Plans and prices
From Mapster32's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Mapster32 | Free | Included with EDuke32 · for creating Duke Nukem 3D maps |
The facts
Each one read from Mapster32's own pages, with the date it was checked.
What it does
- Editing modes
- Mapster32 has 2D mode for map layout and object placement and 3D mode for editing textures, heights, and shading.checked 8 Oct 2026
- Editor
- The wiki describes Mapster32 as a highly advanced upgrade of the original BUILD Editor shipped with the game.checked 8 Oct 2026
- Included with
- The level editing guide says Mapster32 is included with EDuke32.checked 8 Oct 2026
- Limit
- The map checking guide says some serious map corruption requires manual expert resolution.checked 8 Oct 2026
- Map validation
- Mapster32 can check loaded maps for corruption and attempt to repair certain cases.checked 8 Oct 2026
- Operating systems
- The EDuke32 project site lists Windows, Linux, and macOS among its supported platforms.checked 8 Oct 2026
- Other games
- The level editing guide says Mapster32 can also be used to make levels for NAM, WWII GI, Redneck Rampage, and other games.checked 8 Oct 2026
- Project
- Mapster32 is part of the EDuke32 project.checked 8 Oct 2026
- Purpose
- Mapster32 is a tool for creating Duke Nukem 3D maps in .MAP files.checked 8 Oct 2026
- Scripting
- Mapster32 supports scripts in a language derived from CON, loaded as .m32 files or issued through the editor console.checked 8 Oct 2026
Alternatives to Mapster32
- 1
Avidemux
Free planOpen sourceWebLinuxmacOSWindows7.3Free plan - 2
Dune II - The Maker Map Editor
Free planOpen sourceLinuxmacOSWindows7.2Free plan - 3

GtkRadiant
Free planOpen sourceLinuxmacOSWindows7.2Free plan - 4

LDtk
Free planOpen sourceAPILinuxmacOSWindows7.2Free plan - 5

GridCraft
Free planWebAPILinuxmacOS7.0From $3.99 a month - 6

Sprite Fusion
Free planWebLinuxmacOSWindows6.9$14.99 one-time
