Talk:Alien Swarm

What is "the embryonic in-game map editor seen in Portal"? Please do elaborate or include a link about that because I am really interested in learning more about such an in-game map editor found in Portal.--ThaiGrocer 23:02, 16 July 2010 (UTC)

I assume he was referencing po_edit but that tool was created by a third party and while nice technically it makes terrible maps as the resulting maps are save files and cannot have lighting. --Omnicoder 02:05, 17 July 2010 (UTC)