The Croteam fans at Seriously! have posted a new video showing off the editor for The Talos Principle, and how it can be used to create new maps from scratch for this action/adventure that's due next month. The clip is time condensed to show the entire four-plus hour process, so it only runs about 35 minutes, and the accompanying notes explain that the whole thing would be half as long if the author "didn't choose to do the cliffs." Those interested in the game can check out the recently released Public Test and the game is available for pre-purchase in advance of its planned December 11th release.