Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cross-platform 2D and 3D game engine with modular architecture
A retro game engine for Python
LayaAir is an open-source 2D/3D engine
Solar2D Game Engine main repository (ex Corona SDK)
Kotlin extensions for the libGDX game framework
Cross-platform game engine in Rust
Open source library for creative expression on the web, desktop, etc.
Recreation of the classic Grand Theft Auto III game executable
Game engine supporting many 3D/2D formats and graphic effects
KlayGE is a cross-platform open source game engine
A fast, scalable, distributed game server engine/framework for C++
Low-Level Game Engine for Retro Platforms
Free and Open Game Programming Language for Windows and GNU/Linux
A project to create a blazingly fast Swift game engine
Game engine allows you to create own MMORPG
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Java decentralized cross-platform network multiplayer game engine
Mahasona engine is an open source game engine.
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Educational framework for OpenGLES, OpenCL and OpenAL
A 2D Adventure Game & Engine
A truly extensible cross-platform game engine