Here to share a new game engine I just released, and plan to continue actively developing the engine, with weekly updates and daily revisions, and monthly version releases. cloudRealms is an open source web based MMORPG game engine, licensed under the AGPL v3 which allows you to easily create your own 2D social RPG. It's completely open source, and relies on no additional 3rd party browser plugins, even flash which leaves room for smart phone development.
Check it out! The website is hosted on sourceforge.net here:http://cloudrealms.sourceforge.net/