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Mapster32

wiki.eduke32.com

Free plan WindowsmacOSLinux
Visit wiki.eduke32.com
Spec score 7.5 #15 of 28 in Game Level Editors

What it is

Mapster32 is a free map editor for creating Duke Nukem 3D maps in.MAP files. It is part of the EDuke32 project and is included with EDuke32. The editor is described as an advanced upgrade of the original BUILD Editor. Its 2D mode handles map layout and object placement; 3D mode edits textures, heights and shading. Mapster32 can also create levels for NAM, WWII GI, Redneck Rampage and other games. It supports scripts in a language derived from CON, loaded as.m32 files or entered through the editor console. The tool checks loaded maps for corruption and can attempt repairs in some cases. Serious corruption may still require manual expert resolution. EDuke32 lists Windows, Linux and macOS support. The Mapster32 plan is listed at free. There is no free trial because the product is provided as a free plan.

Spec sheet

Purpose
Mapster32 is a tool for creating Duke Nukem 3D maps in .MAP files.Read 8 Oct 2026 · wiki.eduke32.com
Editing modes
Mapster32 has 2D mode for map layout and object placement and 3D mode for editing textures, heights, and shading.Read 8 Oct 2026 · wiki.eduke32.com
Editor
The wiki describes Mapster32 as a highly advanced upgrade of the original BUILD Editor shipped with the game.Read 8 Oct 2026 · wiki.eduke32.com
Included with
The level editing guide says Mapster32 is included with EDuke32.Read 8 Oct 2026 · wiki.eduke32.com
Limit
The map checking guide says some serious map corruption requires manual expert resolution.Read 8 Oct 2026 · wiki.eduke32.com
Map validation
Mapster32 can check loaded maps for corruption and attempt to repair certain cases.Read 8 Oct 2026 · wiki.eduke32.com
Operating systems
The EDuke32 project site lists Windows, Linux, and macOS among its supported platforms.Read 8 Oct 2026 · eduke32.com
Other games
The level editing guide says Mapster32 can also be used to make levels for NAM, WWII GI, Redneck Rampage, and other games.Read 8 Oct 2026 · wiki.eduke32.com
Project
Mapster32 is part of the EDuke32 project.Read 8 Oct 2026 · wiki.eduke32.com
Scripting
Mapster32 supports scripts in a language derived from CON, loaded as .m32 files or issued through the editor console.Read 8 Oct 2026 · wiki.eduke32.com

Plans and prices

Mapster32 Free Included with EDuke32 · for creating Duke Nukem 3D maps Read 8 Oct 2026 · wiki.eduke32.com

Every Mapster32 plan and price →

Strong points and limits

Strong points

  • Included with EDuke32
  • Supports Windows, Linux and macOS
  • Provides 2D and 3D editing modes
  • Accepts CON-derived .m32 scripts
  • Checks and repairs some map corruption

Limits

  • Serious corruption may need manual expert resolution
  • No free trial is listed
  • Focused on .MAP level creation

Who it suits

Mapster32 suits level designers creating Duke Nukem 3D or related Build-engine maps. It is useful for users who need both 2D layout and 3D texture, height and shading edits.

Verdict

Mapster32 provides a free, cross-platform editor with 2D layout, 3D editing, scripting and map checks. It covers several Build-engine games, but severe corruption remains a manual problem.

Where Specifiction places it

Alternatives to Mapster32All alternatives →