GridCraft vs Mapster32

GridCraft is a tile map editor for game developers, available in a browser and as a desktop app. It lets users paint tiles of different sizes from one atlas onto a map. Editing tools include brush, terrain, flood fill, shape, selection, stamp and object tools. GridCraft opens and saves Tiled.tmx and.tmj maps, with export targets including Godot 4, GameMaker, Defold, LDtk, LOVE2D, Lua and CSV. Live collaboration displays teammates’ cursors, selections and edits, synchronized through CRDT. The desktop app supports GitHub and GitLab for map-file commits, pushes and pulls. It can expose an open map to MCP clients for AI-agent access, but the server is off by default, binds to the local machine and does not yet edit infinite chunked maps. The free web editor includes all 19 tools and export formats without an account. Free accounts include three cloud maps, 25 MB total storage, one bound desktop device and collaboration for up to three people per map. Paid options include Cloud at $3.99 a month, Team at $13.99 a month and the desktop app at $19.99, paid once.

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.