The IG-series was a series of droids manufactured by Holowan Laboratories during the final years of the Galactic Republic, and were used as both bodyguards and assassins. A notable example was IG-88, who functioned as a bounty hunter during the Galactic Civil War.
- LEGO Star Wars: The Freemaker Adventures – "The Lost Treasure of Cloud City"
- LEGO Star Wars: The Freemaker Adventures – "The Maker of Zoh"
- LEGO Star Wars: The Freemaker Adventures – "Return to the Wheel"
- LEGO Star Wars: Droid Tales – "Flight of the Falcon" (Appears in flashback(s))
- Star Wars: Galaxy of Heroes
- Ultimate Star Wars
- Star Wars Character Encyclopedia: Updated and Expanded (First identified as IG-series)
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- Star Wars: Complete Locations
- Star Wars: Galactic Atlas
- Star Wars Expanded Universe (Set: 75167 Bounty Hunter Speeder Bike Battle Pack)
- Star Wars: Absolutely Everything You Need to Know, Updated and Expanded
- Star Wars: Droidography