A free & open-source 2D sprite editor, made with the Godot Engine
Blockbench - A low poly 3D model editor
Modern, lightweight and efficient 2D level editor
3D and 2D game engine written in Rust
Spritesheet Cutter Level Editor Animation Tester
Kisekae UltraKiss is a full featured integrated development environmen
A pixel art editor that supports animation and scripting
Program for manipulating with mind maps
Map Generation Application and API
Nash Operating System for Modern Ecommerce
A graphical NBT editor for all Minecraft NBT data sources
Open source first/third person shooter set in real world locations
Editor for configuring the open source navigation program Navit
Create symmetric sprites: browse, save to PC, or store online
Power tools for creating Stunts track maps.
Easy creation of normal maps
TurboSphere is an easy to learn and powerful JS based game engine.
A world editor for HGE game engine written in python and uses OpenGL.
A GUI Level Editor for the Enigma Game
Pear3DEngine is a modern and modular 3D development framework
KPEdit - A 2D skeletal animation editor.