Star Wars has always had a droid problem it declined to look at. The films are full of thinking machines that are bought, sold, wiped, dismembered for comedy and restrained by devices that cause them pain. Dark Droids is the first Star Wars comic to treat that as a setting for horror rather than a background detail.
The Scourge
The antagonist is an intelligence that spreads through droids the way a disease spreads through bodies. It is not a villain with a plan so much as an appetite with a method, and Charles Soule writes it with a genuinely unpleasant patience. The best sequences are the small ones: a familiar astromech going quiet, a medical droid taking slightly too long to answer.
Luke Ross
Ross draws corrupted machinery better than anyone Marvel could have assigned. The corruption is rendered as growth — cabling like tendons, plating like scar tissue — and it escalates issue by issue until the visual language of the book has changed completely.
What holds it back
Five issues is not enough room for a galaxy-scale infection, so the miniseries leans hard on tie-ins to do its worst damage, and the resolution arrives fast. D-Squad, the four-issue comedy spin-off by Marc Guggenheim and Salva Espín, is genuinely good but sits oddly against the main book's tone. Read the omnibus and the pacing problem disappears; read the miniseries alone and you will feel the seams.
Still
It is the most original idea in the crossover era, and it does something no Star Wars comic had done: made R2-D2 frightening.