 | Out of Time (Delta Devlin #3) Matthew Mather October 19, 2021 science fiction, thriller |
 | The Liar of Red Valley Walter Goodwater September 28, 2021 fantasy, thriller |
 | The Unraveller (Million Eyes Trilogy #2) C. R. Berry September 24, 2021 science fiction, thriller |
 | Forgotten in Death (In Death #53) J. D. Robb September 7, 2021 science fiction, romance, thriller |
 | The Hawthorne Legacy (The Inheritance Games #2) Jennifer Lynn Barnes September 7, 2021 thriller, young adult, mystery |
 | Green Rising Lauren James September 2, 2021 science fiction, thriller |
 | Burden Falls Kat Ellis August 24, 2021 horror, thriller, young adult |
 | Kingdom of Bones (Sigma Force #16) James Rollins August 19, 2021 science fiction, thriller, adventure |
 | Chasing the Boogeyman Richard Chizmar August 17, 2021 horror, thriller |
 | Reclaimed Madeleine Roux August 17, 2021 science fiction, thriller |
 | Velvet Was the Night Silvia Moreno-Garcia August 17, 2021 thriller |
 | Long Shadows (Elizabeth Cage #3) Jodi Taylor August 5, 2021 fantasy, thriller |
 | Billy Summers Stephen King August 3, 2021 thriller |
 | The Follower Nicholas Bowling July 20, 2021 horror, thriller |
 | We Have Always Been Here Lena Nguyen July 6, 2021 science fiction, thriller |
 | Double Threat F. Paul Wilson June 29, 2021 science fiction, thriller |
 | The Colours of Death (The Colours of Death #1) Patricia Marques June 17, 2021 fantasy, thriller |
 | Rabbits Terry Miles June 10, 2021 science fiction, thriller |
 | The Lunacy Commission (A Man Lies Dreaming #2) Lavie Tidhar May 25, 2021 science fiction, alternate history, short stories, thriller |
 | Thrive (The Overthrow #3) Kenneth Oppel May 4, 2021 science fiction, thriller, young adult |
 | Chaos on CatNet (CatNet #2) Naomi Kritzer April 27, 2021 science fiction, thriller, young adult |
 | Stormland John Shirley April 13, 2021 science fiction > cyberpunk, thriller |
 | Breath by Breath (Step by Step #3) Morgan Llywelyn April 13, 2021 science fiction, thriller |
 | The Mary Shelley Club Goldy Moldavsky April 13, 2021 horror, thriller, young adult |
 | Hummingbird Salamander Jeff VanderMeer April 6, 2021 science fiction, thriller |
