3D Engine with Blender Integration
Free and open source 3D creation software
Solar2D Game Engine main repository (ex Corona SDK)
Godot is a powerful cross-platform game engine
The flexible game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Flax Engine, multi-platform 3D game engine
Cross-platform 2D and 3D game engine with modular architecture
Multi-platform 2D and 3D game engine
Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
A game engine with an emphasis on real-time cutting-edge solutions
Cross-Platform C++ 2D/3D game engine
An OpenGL RTS game engine written in C
Xash3D FWGS engine
Simple and light-weight 3D game engine
Injectable LUA scripting system, SDK generator, live property editor
Open source clone of the Age of Empires II engine
Here we're trying to create the easiest open-source game engine.
Zig game engine & graphics toolkit
A complete 3-D game development suite written in Java
Open source voxel game engine with support for survival and crafting
Game engine supporting many 3D/2D formats and graphic effects
Unreal Engine Archives Explorer
A game engine powered by python and panda3d