Cities of the Red Martian Night

Drop the swords (or maybe keep the swords) and add a little spy pot-boiler paranoia enhanced by heavy use of strange drugs and you can get a Barsoom as envisioned by William S. Burroughs rather than Edgar Rice. Brackett’s Low Canal cities become even seedier as they blur with the hallucinatory Tangier, Interzone.

There’s plenty of material in the ERB corpus that needs only a slight twist: think of the rykors and kaldanes, the synthetic men, the planet men, or the realist and etherealist factions of Lothar. Ras Thavas might get along well with Dr. Benway.

No reason not to borrow from Burroughs’s spiritual descendants too: the atavistic drug shanga, Ramas’ mind-transference, or vampiric Shambleau hustlers. Living turbans from the Vaults of Yoh-Vombis would be all the rage.

You get the idea. It doesn’t take much and Mars gets a lot a more alien.