Android, UIQ 3.0, Series 60 Edition 5 open-source software
Self-hosted game stream host for Moonlight
API and runtime that allows access to VR hardware
A Nintendo 3DS Emulator
Multi Theft Auto is a game engine
Desktop/Android/HTML5/iOS Java game development framework
JK's Save Manager Switch Edition
Moonlight port for Nintendo Switch
Flexible level editor
The Playstation 2 emulator
Fast PlayStation 1 emulator for x86-64/AArch32/AArch64
A lightweight game server framework implemented with Actor Model
A free/open source client and automation tool for Ragnarok Online
Home theater software and entertainment hub for digital media
A fast and reliable entity component system (ECS) and much more
The game engine for everyone
An open source flight dynamics & control software library
Botcraft is a cross-platform C++ library to create bots
Community effort to maintain and improve Jedi Academy (SP & MP)
SDL library for Android, including several games.
3D Engine c++
A planetarium software that shows a 3D simulation of the night sky
Digitale Modellbahnsteuerung
Zoomable user interface (ZUI) with file manager, file viewers and more