If Valve is on Habrahabr week, I can not fail to mention the new long-awaited level editor for Portal 2, which will be released on May 8 as free downloadable content (DLC). Unlike the traditional Source editor for the Hammer level game, the new editor looks very different and uses a completely different card simulation technique:
Video
Surprisingly, even the level editor developers have found a place in the storyline. As always, not without humor. Trailer: ')
And the following video, prepared by the ValveTime community, demonstrates the level creation itself:
I was waiting for this editor of the year . Such an approach to modeling levels is more like drawing a drawing or modeling from plasticine. It is especially nice that Valve took care of the easy exchange of the created levels right through the Steam Workshop, without leaving the game.