Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Injectable LUA scripting system, SDK generator, live property editor
3D Scene Builder
2D Game Engine
3D Game engine with editor
Multi-platform game engine similar to old Megaman with a stage editor
A retro style video game engine for RPGs and adventure games.
A Simple Game Engine
cross-platform 2d game engine
Zen3D is a 3D engine and editor for creating games