A game framework written with osu! in mind.
A framework to build Pokémon RPG games
3D game engine/framework in C, with Luajit and Python bindings now
Desktop/Android/HTML5/iOS Java game development framework
One framework for creating powerful cross-platform games
Self-hosted game stream host for Moonlight
Open source HTML5 game framework that offers WebGL and Canvas
Open Source MMORPG Framework
Homebrew development library for Nintendo 3DS/Horizon OS user mode
A simple and easy-to-use library to enjoy videogames programming
A lightweight online game framework
Self-hosted CMS platform based on the Laravel PHP Framework
Custom launcher for Minecraft to easily manage installations
Open source library for creative expression on the web, desktop, etc.
Svelto ECS C# Entity Component System
A lightweight game server framework implemented with Actor Model
Flexible level editor
Unity3D Client And C# Server Framework
Free game engine for development of desktop, mobile, and web games
Powerful, mature open-source cross-platform game engine for Python
Create custom themes for the Nintendo Switch
Cross-platform 2D game engine focused on ultimate productivity
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Botcraft is a cross-platform C++ library to create bots
Cocos simplifies game creation and distribution with Cocos Creator