Open source HTML5 game framework that offers WebGL and Canvas
All Google Snake mods combined into one
Free, cross-platform 2D game engine powered by Haxe and OpenFL
3D game engine/framework in C, with Luajit and Python bindings now
Self-hosted CMS platform based on the Laravel PHP Framework
Programming eXperience Toolkit
Open game and rendering engine packed into a JavaScript framework
Python MUD/MUX/MUSH/MU* development system
CTFs as you need them
Open source library for creative expression on the web, desktop, etc.
A completely free, open-source, 2D game engine
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
JavaScript framework to build game engines, games, emulators and apps
JavaScript-based game engine designed to empower developers
Javascript library for making tile based games
XML-based framework for developing games
Saved game manager for Conan Exiles Isle of Siptah
Program to block League of Legends contacts.
The imaginary eight-bit machine
A complete web framework to create online Fighting Fantasy adventures
Standalone Complete Sudoku puzzle Game Solver Generator for Windows
Asphyre is a cross-platform framework for Delphi and FreePascal.