Monkey X

Monkey is a modular language.

Adventure Game Studio

Adventure Game Studio provides the tools to make your own adventure, for free!

AppGameKit is a game development platform for mobile devices.

BYOND is the premier community for making and playing online multiplayer games.

[Multimedia Fusion 2 has been replaced by Clickteam Fusion 2.5.]

Flixel is an open source game-making library that is completely free for personal or commercial use.

GDevelop is an open-source game making software designed to be used by everyone.

Create cross-platform games easier and free. All with one codebase.

HaxePunk is a 2d game engine written in Haxe for cross-platform deployment.

Hi there! LÖVE is an awesome framework you can use to make 2D games in Lua.

MonoGame is an open source implementation of the Microsoft XNA 4 Framework.

Build games and applications for almost every platform imaginable – Windows, Mac, Linux, iOS…

Orx - a portable open source game engine

Polycode is a C++ and Lua framework for building interactive applications.

Pygame is a set of Python modules designed for writing games.

Full-featured HTML5 game engine with visual interface for building games.

The RPG Toolkit is a free, open source project delivering a simple, flexible and powerful tool for…

The multiplatform game creation tools for everyone.