Platinum Arts Sandbox Game Maker
features in-game editing, co-op editing, dynamic lighting, crossplatform support and advanced networking with the goal of adding visual scripting and many more features via this Kickstarter campaign
. Users will be able to rapidly create games of many different genres and require little to no prior coding experience. Sandbox is available for Windows, Linux and Mac and is based on the Cube 2 Engine.
A Steam Greenlight page can be found here