After Bethesda and Obsidian released
Fallout: New Vegas, there came an opportunity to continue the story in the Mojave Wasteland through four narrative downloadable content packs (DLCs). What were the challenges and the rewards? Obsidian's creative director
Chris Avellone discusses the design methodology and narrative constraints for the DLCs that followed the hit video game.
http://www.comic-con.org/wc/wc_search_results.php?strShow=32&strRec=3959
