Xash3D FWGS engine
The source code to VVVVVV
Open source cross-platform multi-purpose game toolkit
Cocos simplifies game creation and distribution with Cocos Creator
Fast and lightweight JavaScript game engine built on WebGL and glTF
Xeno Executor — Roblox Script Executor for Windows
Use the Delta Executor APK with Roblox on a Windows PC.
Delta Executor — Roblox Script Executor for Windows
Source of Mana is a unique 2D MMORPG
Engo is an open-source 2D game engine written in Go
RelaxChess, chess game that makes no search futher needed for a wow
Open source script based on Master XLS
plugin-based RPG manager in C++ and Qt5
c# lua bind with unity3d project for game development
3D Game engine
Up to date MUD client evolved from the original MudMaster
Version 1.2
AOnow winamp plugin for Anarchy Online and Age of Conan
Cross-platform 2D game engine
Delphi-like IDE for cross-platform game development
Make games with Lego-like building blocks