Desktop/Android/HTML5/iOS Java game development framework
Stride (formerly Xenko), a free and open-source cross-platform C# game
A Call of Duty-quality FPS in Three.js, built from a single prompt
Flax Engine, multi-platform 3D game engine
KorGE Game Engine. Multiplatform Kotlin Game Engine & Korlibs
The ioquake3 community effort to continue supporting/developing id's
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
dhewm 3 main repository
The Tiny JavaScript Game Engine That Can!
An elegant Go board and SGF editor for a more civilized age
A charting and data visualization library for Unity
Write your game with TypeScript in UE or Unity
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Open-source OpenGL/SDL2 reimplementation of Sid Meier's Alpha Centauri
Code for Cicero, an AI agent that plays the game of Diplomacy
3D Game engine with editor
Free game engine for development of desktop, mobile, and web games
New Godot bindings for Swift
Gideros Release version
A game for learning CSS flexbox
A lightweight game server framework implemented with Actor Model
A pure Go game engine
Just another ComputerCraft fork
A game for learning CSS grid layout