Open-source engine for Heroes of Might and Magic III
Open-source rhythm game
A Nintendo 3DS Emulator
Skin changer for League of Legends (LOL)
fheroes2 is a recreation of Heroes of Might and Magic II game engine
Multi Theft Auto is a game engine
Google maps for block game
The Playstation 2 emulator
Free and open source real-time strategy game
Open Source MMORPG Framework
Open source clone of the Age of Empires II engine
The A32NX & A380X Project are community driven open source projects
Solar2D Game Engine main repository (ex Corona SDK)
Moonlight port for Nintendo Switch
The main repository for the development of the evolution game Thrive
Best blooket hack around
Experimental PlayStation Vita emulator
Create custom themes for the Nintendo Switch
Free, open source game engine online
Gideros Release version
The Tiny JavaScript Game Engine That Can!
3D Procedural Game Engine Using OpenGL
RPG Maker 2000/2003 and EasyRPG games interpreter
A fresh & lightweight javascript game engine
A game framework written with osu! in mind.