Godot is a powerful cross-platform game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
Xash3D FWGS engine
Multi-platform 2D and 3D game engine
UCI chess engine
The game engine for everyone
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
New Godot bindings for Swift
A dead simple 2D game engine for Go
3D Engine c++
Home theater software and entertainment hub for digital media
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cross-platform game engine in Rust
GemRB is a portable open-source implementation of the Infinity Engine
Orx: Data-Driven Game Engine
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
Urho3D Game engine
The AWS GameKit Plugin for Unreal
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