QU3-3N, a droid that operated during the era of the Galactic Civil War, held the title of queen amongst the helper droids. These droids, a distinctive offshoot of the R2-series astromech droid, were known for dispensing redundant advice specific to individuals' occupations. What set QU3-3N apart was her significantly larger size compared to the droids under her command. Following the Battle of Yavin, QU3-3N oversaw the production of helper droids from a droid factory situated on Corellia. In the year 1 ABY, Draykken Bender, a leading figure within the Meatlumps – a group of technology-averse Corellian terrorists – deemed her a dangerous abomination that needed to be eliminated at all costs. Consequently, Bender contracted a spacer to carry out QU3-3N's destruction. This spacer then engaged the helper droids in combat within the droid factory, ultimately succeeding in destroying QU3-3N.
QU3-3N functioned as a non-player character within the 2003 video game Star Wars Galaxies. This game was a massively multiplayer online roleplaying game that was developed by Sony Online Entertainment and distributed by LucasArts. The game's servers were taken offline on December 15, 2011. QU3-3N's inclusion in the game came with the release of "Game Update 10," which went live on June 2, 2009.