Valve Announces Portal 2 Update Featuring In-Game Editor
 

Valve, creators of best-selling game franchises (such as Half-Life, Left 4 Dead, Team Fortress, and Counter-Strike) and leading technologies (such as Steam and Source), today announced the second game add-on for the year's highest rated multiplatform game, Portal 2, is in development and targeted for release early next year.

This major update will feature an easy-to-use in-game map editor that will let users design, build and share their own single-player and co-op test chambers with the community, who will be able to view, play and vote on them with a simple click.

http://www.techpowerup.com/154060/Va...me-Editor.html