Godot is a powerful cross-platform game engine
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
Xash3D FWGS engine
GemRB is a portable open-source implementation of the Infinity Engine
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
The game engine for everyone
A dead simple 2D game engine for Go
New Godot bindings for Swift
An iOS & tvOS Frontend for Multiple Emulators
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cross-platform game engine in Rust
Orx: Portable Game Engine
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
PyMancala: A Python API for the Mancala game
Urho3D Game engine
The AWS GameKit Plugin for Unreal
The forever free, adless and open source chess server
Cinema Enters Game Console
2D Game Engine
Sdk library for creating 2048 game in c#.
ZED OS the clone of Windows XP
Cross-platform 2D and 3D game engine