
Based on your book
by Huang, S. L.
Cas Russell is not your typical mercenary. She views the world through a lens of pure mathematics, calculating trajectories and physical outcomes with a precision that makes her nearly impossible to kill. When she stumbles into a global conspiracy involving mind control and secret societies, she is forced to play a game where the rules change as fast as she can solve them. The reading experience is clinical, sharp, and relentlessly fast. Huang writes with a kinetic energy that puts you right inside Cas's head, making you feel the frantic pace of her fight-or-flight decisions. This is for readers who enjoy protagonists who are the smartest person in the room, even when they are being hunted, and who want a thriller that treats physics and logic as the ultimate superpower.
If the tactical problem-solving and high-stakes intensity of Cas Russell left you wanting more, you will appreciate these selections. We curated this list to highlight stories where characters use hyper-competence, scientific manipulation, or gritty, hard-boiled logic to navigate dangerous worlds. Whether it is the cyberpunk edge of Neuromancer or the reality-warping physics found in Dark Matter, these titles mirror the way Cas treats reality as a puzzle to be solved. Each pick prioritizes a protagonist who is constantly outmaneuvering their enemies, perfect for anyone who enjoys a race against time where intellect is the sharpest weapon.
As an Amazon Associate, we earn from qualifying purchases.
Like 'Zero Sum Game', this book features a high-octane, genre-bending narrative with a witty, cynical protagonist navigating a world where reality is fundamentally broken. It balances intense action sequences with complex, mind-bending concepts that fans of Huang's mathematical approach to action will appreciate.
This heist novel features a highly competent ensemble cast with unique skill sets, mirroring the tactical, problem-solving nature of Cas Russell's missions. The sharp dialogue and high-stakes maneuvering will appeal to readers who enjoy the calculated, mercenary vibe of the Cas Russell series.
This cyberpunk noir shares the gritty, hard-boiled tone of 'Zero Sum Game' while exploring the intersection of advanced technology and human violence. Fans of Cas Russell's tactical combat and moral ambiguity will find a kindred spirit in Takeshi Kovacs.
Centered on a woman thrust into a secret, supernatural government agency, this book captures the 'fish out of water' feeling of a protagonist dealing with extraordinary abilities. It combines dry humor with a fast-paced mystery that echoes the bureaucratic and tactical challenges Cas Russell faces.

Prefer to listen?
Try Audible and hear the story instead of reading it.
As an Amazon Associate, we earn from qualifying purchases.
A seminal work of cyberpunk that treats information and mathematics as central weapons, much like Cas Russell's manipulation of reality. Its fast-paced, satirical, and hyper-intelligent narrative voice will resonate deeply with fans of Huang's technical style.
by V.E. Schwab
This story explores the scientific creation of superpowers and the resulting moral decay, offering a darker, more psychological take on the 'super-powered mercenary' trope. Readers who enjoyed the ethical dilemmas and tactical combat in 'Zero Sum Game' will appreciate the cutthroat rivalry between the leads.
Featuring a pharmaceutical pirate as the protagonist, this novel blends hard science fiction with a fast-moving, high-stakes plot. It explores themes of autonomy and corporate control that align perfectly with the world-building and character motivations found in Huang's work.
by Blake Crouch
This thriller leans heavily into the 'math and physics as a plot device' element, creating a relentless, race-against-time narrative. Fans who loved the way Cas Russell uses her unique perception of reality to solve problems will be gripped by the scientific stakes in this story.
by Kevin Hearne and Delilah S. Dawson
While more comedic than 'Zero Sum Game', this book subverts traditional fantasy tropes with a sharp, witty narrative voice that fans of Cas Russell's internal monologue will enjoy. It offers a refreshing, fast-paced adventure that doesn't take itself too seriously despite the high stakes.
The quintessential cyberpunk novel that established the 'hacker/mercenary' trope, which serves as a spiritual ancestor to Cas Russell's character. Its atmospheric, gritty world-building and focus on high-stakes digital and physical combat provide a similar reading experience to Huang's work.

Love to read on the go?
Explore Kindle e-readers and take your books with you.
As an Amazon Associate, we earn from qualifying purchases.
As an Amazon Associate, we earn from qualifying purchases.