Divinity: Original Sin is only a few days away from the full release. On top of the insanely feature packed game, Divinity: Original Sin includes the insanely powerful Divinity Engine Toolkit, a level editor that lets you do pretty much anything. Along with the editor, Larian Studios has included Cow Simulator 2014 as a sample template for would-be modders to both play and learn from. You can check out Larian Studios developers giving a hands-on tutorial on working with the Divinity Engine Toolkit on the Larian Studios YouTube channel.
To learn more about the game visit http://www.divinityoriginalsin.com/