High Quality Content by WIKIPEDIA articles! Fallout Online (also known under the codename `Project V13 and FOOL) is an upcoming massively multiplayer online video game (MMO) set in the Fallout world that is being developed by Masthead Studios and being published by Interplay, with members of the Interplay team providing creative control and design. Chris Taylor and Mark O`Green, two of the creators of the original Fallout, are among the developers. Jason Anderson, one of the other makers of Fallout, was involved in the project between 2007 and 2009, but has since left the team.