There are 10 repositories under map-editor topic.
A new Minecraft world editor and converter that supports all versions since Java 1.12 and Bedrock 1.7.
It's a Doom editor
A Python library for reading and writing the Minecraft save formats. See Amulet for the actual editor.
A map and tileset editor for pokecrystal, pokered, and projects based on them. Written in C++ with FLTK.
Open source toolkit for Mafia games. (Mafia II, Mafia III, Mafia DE)
Map editor for C&C: Red Alert 2, C&C: Tiberian Sun and Dawn of the Tiberium Age.
Tile / Sprite / Map Editor
A BYOND language smartness provider, map renderer, and more.
Main repository for VALHALLA, the first-person shooter game set within a dystopian, sci-fi reimagining of Norse mythology.
Qt based tool for editing maps generated by ROS gmapping package.
A DOOM and Duke Nukem 3D style game with ray-casting, featuring a level editor and multiplayer from scratch in C
Open source map editor in Unity, for Rust.
Kirby's Dream Course / Kirby Bowl level editor (C++ / Qt)
Vic3 mapdata editor is an open source province editor based off Jomini.
Kirby's Adventure Level Editor (C++ / Qt)
CAMM (Crystal Alien Map Maker) open source level/map editor for CrystAlien Conflict.
Fusez Map Editor Version 3 - This is a map editor for SA:MP
:fire: SharpFlame: A modern cross-platform Warzone 2100 map editor based on the original Warzone 2100 FlaME map editor
A level editor for Super Mario Land 3 / WarioLand 1 (1993)
Map editor for the game OpenSoldat
A python framework for procedural generation in Minecraft with the GDMC HTTP Interface mod.
🗺🧱🕹 Project-oriented, tileset- and object-based level editor for games! -- https://hlorenzi.github.io/mapvania/
A 1 week game with map editor, entity system, and GUI system written in Python and fixed pipeline OpenGL version.