LDtk vs NetRadiant

LDtk is a free, open-source 2D level editor for game developers, available for Linux, macOS, and Windows. It supports Grid-vania, linear, and free-world layouts, with levels rearranged by drag and drop. Its visual auto-layering editor lets users define rules for tile skinning, while custom entities can hold typed properties such as hit points, patrol paths, or inventories. LDtk exports PNGs and JSON entity data, with optional Tiled TMX export. It can load Aseprite files directly and reload them when saved. The editor focuses on platformer and top-down perspectives, rather than isometric 3D. Backups can restore unsaved changes after an application crash. The maker lists community importers and loaders for engines including Unity, MonoGame, Godot, Playdate, GameMaker Studio, Löve 2D, and Bevy. LDtk has no usage limitations stated, and content created with it may be used commercially. Documentation and an official Discord community are linked from its site.

NetRadiant is a free, open-source 3D game level editor that uses brushes to build levels. It has first-class compatibility with Xonotic and Unvanquished and supports about 30 other games, with support varying by game. The project is driven by Xonotic, receives support from Unvanquished, and is maintained by a community of gamers, mappers, modders and game developers. It originated as a fork of Id Software’s GtkRadiant project. Listed downloads include Linux 64-bit, Windows 32-bit and 64-bit, macOS 64-bit and FreeBSD 64-bit builds. The builds include daemonmap for Unvanquished navmesh generation and q3map2 patches for Smokin’ Guns. Released Xonotic files work without an extra mapping support package. Linux use requires a working GTK2 and OpenGL environment. Windows builds offer optional Mesa3D rendering, described as a workaround for some older Intel chips on Windows 10. A 2022 project post described macOS support as new and potentially rough, including possible multi-screen configuration problems. The download page lists version 1.5.0-20220628.