The S-1 security droid was a type of security droid deployed during the Galactic Civil War, and it was based on the design of the Viper probe droid. During the time of the Battle of Yavin, the Corellian Security Force utilized both S-1 and S-2 security droids for patrols in the subterranean maintenance tunnels under Coronet City, focusing particularly on the lower maintenance areas. The Meatlump gang, known for their anti-technology stance, sometimes engaged in combat with these S-1 and S-2 droids because their secret hideout was situated in the derelict tunnels just above the lower maintenance sections.
The S-1 security droid made its debut in Star Wars Galaxies, a massively multiplayer online roleplaying game which launched in 2003. LucasArts published the video game, while Sony Online Entertainment developed it, before the game's servers were shut down on December 15, 2011. The droid was incorporated into the game via the "Meatlumps Theme Park" update, which was part of "Chapter 10: The Search for the Meatlump King," released on June 19, 2008.