Godot is a powerful cross-platform game engine
Open source voxel game engine with support for survival and crafting
An open-source sandbox tower defense game
Solar2D Game Engine main repository (ex Corona SDK)
A certain block game
Open source HTML5 game framework that offers WebGL and Canvas
RetroArch is a frontend for emulators, game engines and media players.
The game engine for everyone
Xash3D FWGS engine
A dead simple 2D game engine for Go
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
New Godot bindings for Swift
One framework for creating powerful cross-platform games
Voxel game-creation platform with easy modding and game creation
Sandbox video game with a powerful physics engine
Free game engine for development of desktop, mobile, and web games
Desktop/Android/HTML5/iOS Java game development framework
A bridge/proxy allowing you to connect to Minecraft
Multi-platform 2D and 3D game engine
Cross-platform game engine in Rust
A simple and easy-to-use library to enjoy videogames programming
A cross-platform PSP emulator
Open-source Android/Desktop remake of Civ V
Open source library for creative expression on the web, desktop, etc.