Solar2D Game Engine main repository (ex Corona SDK)
Open Source real-time strategy game engine for early Westwood games
The flexible game engine
Fast and lightweight JavaScript game engine built on WebGL and glTF
Godot is a powerful cross-platform game engine
Injectable LUA scripting system, SDK generator, live property editor
Open source voxel game engine with support for survival and crafting
3D game engine/framework in C, with Luajit and Python bindings now
Real Time Strategy game engine supporting early Westwood classics
fheroes2 is a recreation of Heroes of Might and Magic II game engine
The game engine for everyone
Flax Engine, multi-platform 3D game engine
Powerful, mature open-source cross-platform game engine for Python
Magic Another Game Engine
A Flutter based game engine
Open-source engine for Heroes of Might and Magic III
Open source clone of the Age of Empires II engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Cross-Platform C++ 2D/3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
RPG Maker 2000/2003 and EasyRPG games interpreter
3D Procedural Game Engine Using OpenGL
dhewm 3 main repository
Free, open source game engine online
The Open Toolkit library is a fast, low-level C# wrapper for OpenGL