FPS Unlocker for Roblox
Android real-time display control software
Scripting platform, modding framework and VR support for RE Engine
Stream switch games to your PC via USB or network
Desktop/Android/HTML5/iOS Java game development framework
A cross-platform PSP emulator
GUI for downloading/managing homebrew apps for video game consoles
Injectable LUA scripting system, SDK generator, live property editor
Multi Theft Auto is a game engine
Dust3D is a cross-platform open-source 3D modeling software
Open Source MMORPG Framework
The game engine for everyone
Simple and Fast Multimedia Library
Powerful, mature open-source cross-platform game engine for Python
Open source clone of the Age of Empires II engine
An open source flight dynamics & control software library
Cross-Platform C++ 2D/3D game engine
Solar2D Game Engine main repository (ex Corona SDK)
RPG Maker 2000/2003 and EasyRPG games interpreter
3D Procedural Game Engine Using OpenGL
Mangos ZERO is a server for World of Warcraft
Flax Engine, multi-platform 3D game engine
Free and open source real-time strategy game
Urho3D Game engine
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D