Godot is a powerful cross-platform game engine
Xash3D FWGS engine
A cross-platform PSP emulator
Open source cross-platform multi-purpose game toolkit
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cocos simplifies game creation and distribution with Cocos Creator
Cross-platform game engine in Rust
Voxel game-creation platform with easy modding and game creation
One framework for creating powerful cross-platform games
Desktop/Android/HTML5/iOS Java game development framework
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Stream switch games to your PC via USB or network
Open-source Android/Desktop remake of Civ V
RetroArch is a frontend for emulators, game engines and media players.
Open source library for creative expression on the web, desktop, etc.
The game engine for everyone
A dead simple 2D game engine for Go
Do virtual gear shifting (and more) in any rider app
Action-adventure game originally released in 2013
3D Engine c++
Cross-platform 2D game engine (+ full OpenGL, +full OpenGL ES )
INSTEAD - Simple Text Adventure Interpreter.
JavaScript framework to build game engines, games, emulators and apps
3D modeler, 3D game maker, 3D demo maker
Artificial Intelligence Poker Bot for popular apps on Android