Desktop/Android/HTML5/iOS Java game development framework
DOSBox Staging is a modern continuation of DOSBox
API and runtime that allows access to VR hardware
GUI for downloading/managing homebrew apps for video game consoles
JK's Save Manager Switch Edition
Diablo build for modern operating systems
Open Source MMORPG Framework
Flexible level editor
Solar2D Game Engine main repository (ex Corona SDK)
Moonlight port for Nintendo Switch
The game engine for everyone
Flax Engine, multi-platform 3D game engine
Powerful, mature open-source cross-platform game engine for Python
lua dev plugin for unreal engine 4 or 5
A lightweight game server framework implemented with Actor Model
2D game development library for Ruby and C++
A fast and reliable entity component system (ECS) and much more
Write your game with TypeScript in UE or Unity
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
A simulator for drones, cars and more, built on Unreal Engine
FlightGear Flight Simulator: free open-source multiplatform flight sim
3D Engine c++