Cocos Creator is a visual game creation system built over the Cocos2d-x game engine, enabling more visual development of 2D games. It is now available in public beta and can be downloaded here.
From the announcement:
Cocos Creator is a complete package of game development tools and workflow, including a game engine (based on Cocos2d-x), resource management, scene
editing, game preview, debug and publish one project to multiple platforms.
For the first time we introduced entity-component structure and data-driven workflow to the cocos2d-x family. With JavaScript, you can scripting your component in no time. The editor and engine extension is also made with JavaScript so you can make games and refine your tool in a single programming language.
Cocos Creator is an provides an innovative, easy to use toolset such as the UI system and Animation editor. The toolset will be expanding continuously and quickly, thanks to the open editor extension system.You can download Creator and also review the documentation.
editing, game preview, debug and publish one project to multiple platforms.