Sigma Force is a series of action-adventure/thriller novels by American novelist James Rollins. The SIGMA Force is a fictional division of the United States DARPA program. Its purpose is to investigate and to secure sensitive information that could be a threat to the country. Painter Crowe is the lead agent of the force, with a keen analytical mind that can see beyond the obvious facts.

The series began in 2004 with Sandstorm and has continued at the rate of one new book per year ever since. Currently, the Sigma Force series consists of seven novels with an eighth on the way. Below is the order in which James Rollins’ Sigma Force books were originally published:

Publication Order of Sigma Force Books

Sandstorm(2004) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Map of Bones(2005) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Black Order(2006) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Kowalski's in Love (Short Story)(2006) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Judas Strain(2007) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Last Oracle(2008) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Doomsday Key(2009) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Skeleton Key (Short Story)(2011) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Devil Colony(2011) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Tracker (Short Story)(2012) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Bloodline(2012) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Eye of God(2013) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Sixth Extinction(2014) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Midnight Watch (Short Story)(2015) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Bone Labyrinth(2015) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Crash and Burn (Short Story)(2016) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Seventh Plague(2016) Best Hardcover PriceBest Paperback PriceBest Kindle Price
Ghost Ship(2017) Best Hardcover PriceBest Paperback PriceBest Kindle Price
The Demon Crown(2017) Best Hardcover PriceBest Paperback PriceBest Kindle Price

Note: The Tucker Wayne series is co-authored with Grant Blackwood.

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