Godot is a powerful cross-platform game engine
Cocos simplifies game creation and distribution with Cocos Creator
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
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
The game engine for everyone
An unofficial rules engine for the world's greatest card game
Voxel game-creation platform with easy modding and game creation
A dead simple 2D game engine for Go
New Godot bindings for Swift
Game engine to build text adventures.
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Godot Kotlin JVM Module
Sandbox video game with a powerful physics engine
An iOS & tvOS Frontend for Multiple Emulators
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Cross-platform game engine in Rust
RenderDoc is a stand-alone graphics debugging tool
Play! - PlayStation2 Emulator
Orx: Portable Game Engine
A Complete WebGPU Game Engine for Browser & Desktop Arcade Oriented
computer opponent for the board game Blokus