Godot is a powerful cross-platform game engine
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Cocos simplifies game creation and distribution with Cocos Creator
Xash3D FWGS engine
Open source voxel game engine with support for survival and crafting
GemRB is a portable open-source implementation of the Infinity Engine
An unofficial rules engine for the world's greatest card game
Voxel game-creation platform with easy modding and game creation
The game engine for everyone
A dead simple 2D game engine for Go
New Godot bindings for Swift
Godot Kotlin JVM Module
Game engine to build text adventures.
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Sandbox video game with a powerful physics engine
Free, cross-platform 2D game engine powered by Haxe and OpenFL
RenderDoc is a stand-alone graphics debugging tool
Orx: Portable Game Engine
Cross-platform game engine in Rust
Play! - PlayStation2 Emulator
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
computer opponent for the board game Blokus
Cross-platform 2D game engine (+ full OpenGL, +full OpenGL ES )
GameServer is a sophisticated, game server designed for online games