Paizo Publishing ran a completely open playtest through the alpha and beta stages of their Pathfinder Roleplaying Game in 2008 and 2009, releasing the rules as free PDF's (and also in print for the beta version) on their web store. Anyone could join the playtest by downloading the documents, running games using them, and posting their feedback on the Paizo message boards. This playtest, which was active for over a year, is the longest-running open playtest in RPG history to date, as well as being one of the largest due to its unrestricted nature.