Desktop/Android/HTML5/iOS Java game development framework
A lightweight game server framework implemented with Actor Model
API and runtime that allows access to VR hardware
RenderDoc is a stand-alone graphics debugging tool
stb single-file public domain libraries for C/C++
A fast and reliable entity component system (ECS) and much more
MAME is a multi-purpose emulation framework
Fast, small, safe, gradually typed embeddable scripting language
Moonlight port for Nintendo Switch
Simple and light-weight 3D game engine
Botcraft is a cross-platform C++ library to create bots
Flexible level editor
Open source Cardboard SDK and samples
Samples that demonstrate how to build graphics intensive applications
JK's Save Manager Switch Edition
A node.js plugin to integrate nw.js/electron games with steamworks
This software is a particle effect editing tool
Drogon: A C++14/17/20 based HTTP web application framework
Memory Efficient Serialization Library
The open-asset-importer-library repository
Math library using HLSL syntax with multiplatform SIMD support
Orx: Data-Driven Game Engine
LÖVE is an awesome 2D game framework for Lua
Vivid3D is a C++ IDE/3D engine, with python scripting.