level-editor topic
node-level-editor
Unity3d Editor tools to create rooms quickly.
Aerofoil
Multiplatform desktop/mobile/browser port of Glider PRO, the classic Macintosh paper airplane game
ObjectPaint
Tool for Unity that allows you to quickly bash objects in the scene with randomized parameters.
WL1-Editor
A level editor for Super Mario Land 3 / WarioLand 1 (1993)
LDtkMonogame
Monogame importer, renderer and code generator for LDtk Level editor
nspace
N-Space: a mobile app for building 3D interactive worlds
WL4Editor
Wario Land 4 Level Editor.
Xenode
A Cross Platform 2D and 3D Game Engine
stove
an editor for cooked unreal engine 4/5 maps
XXL-Editor
Level editor for games using ELB's Kal engine, such as XXL 1/2 and Olympic Games, original and remaster