The popularity of the Grand Theft Auto series, paired with the franchise's aptitude for expansive open worlds and player freedom, has logically led to the creation of many mods for the various games in the series. This huge interconnected map could then be seamlessly explored, creating one gigantic open-world Rockstar Games experience. GTA: Underground expanded San Andreas' map using cities from other Rockstar Games titles such as GTA: Vice City, GTA III, Bully and Manhunt. An ongoing Grand Theft Auto: San Andreasmodding project, titled GTA: Underground, has ceased development after hostility against modders from series owner Take-Two Interactive.
