There are 16 books in the Drop Trooper series. The newest book is Kill Chain which came out in 2024.

Go to war or go to jail.

For small-time street hustler Cam Alvarez, the choice is simple.  He has no family, no friends, no place in the world…nothing to lose.  When his latest con results in the death of a cartel hitman, Cam opts to join the Marines and leave…
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2
Kinetic Strike

Book cover of Kinetic Strike
The war made him a hero. Now the Marines need him to be a leader.Cam Alvarez is a Drop-Trooper. A warrior-knight wrapped in the futuristic armor of a high-tech battlesuit, and he’s one of the best. When he’s promoted to sergeant and asked to become a leader, he faces a…

3
Danger Close

Danger Close
All Cam Alvarez has known is war.For three years, he’s fought the marauding alien Tahni on one God-forsaken planet after another, leading a squad of armored Drop Troopers.But the war is about to change.Cam is an officer now, fresh out of OCS and taking charge of his old platoon, and…

4
Direct Fire

Book cover of Direct Fire
From street criminal to war hero.From outcast to Marine officer.The journey has been a long one, but now it’s reaching the end.Cam Alvarez leads his platoon of Drop-Troopers into the Tahni Imperium, into the final days of the war and the bloodiest battles yet. The Tahni will throw everything they…

5
Home Front

Home Front
Cam Alvarez was finished with war. But war isn’t finished with him.Hausos is a peaceful farming colony. Once controlled by the Tahni, it's now settled by a collection of homeless refugees and war veterans, among them Cam and Vicky. Their life is pleasantly boring, quiet enough for demons from the…

6
Fire Base

Fire Base
Death stalks the edges of human space.Cam Alvarez and Vicky Sandoval have pursued the renegade, Tahni Zan-Thint, to his refuge in the outlaw cartels of the Pirate Worlds. On a planet of endless ocean and volcanic fury, Zan-Thint is coming ever closer to learning the secrets of the ancient alien…

7
Shock Action

Book cover of Shock Action
Cam is a Marine, not a spy. That’s what he keeps trying to tell Fleet Intelligence, but when he and Vicky signed back up, they agreed to follow orders. And their orders are to keep working for the Corporate Security Force and find out what the private paramilitary force knows…

8
Release Point

Release Point
It's the final showdown between Cam and a rogue Tahni general... And it might be the end of everything.

Cam and Vicky are chasing down Zan-Thint to his last fortress, a lifeless world deep in Tahni space. If they can't take him down before he activates an ancient alien weapon,…

9
Kill Box

Kill Box
Cam Alvarez is lost in the depths of the galaxy…and the only way home is through a horde of alien monsters.

Cam and the others in the task force have followed Zan Thint through the Predecessor Gateway to another spiral arm of the galaxy. There, they are stranded…unless they can…

10
Drop Zone

Book cover of Drop Zone
Cam Alvarez just wants to go home. He just isn't sure where home is.

For Fleet Intelligence Colonel Marcus Hachette and the crew of the Orion, getting home means finding the gate the Predecessors used to travel halfway across the galaxy and using it to return to Earth.

For Sgt.-Major…

11
Tango Down

Tango Down
The end is near...

Cameron Alvarez and the crew of the Orion are hot on the trail of the Seekers, following the Predecessor faction on their quest to find the source of the Skrela infestation. But the crew is close to the breaking point, and their commander, Colonel Hachette, is…

12
Blue Force

Book cover of Blue Force
The war is over...or that's what everyone thinks.

Cam knows better.

The Skrela are wiped out, but only Cam and Vicky know the truth, that Dwight and the other AI like him created the monstrous enemy to destroy the Predecessors.

Burdened with this terrible secret, Cam must somehow maintain the…

13
Weapons Free

Book cover of Weapons Free
New systems...new allies...new enemies.

Cam Alvarez and the crew of the Orion spent five years in hibernation, putting old enemies behind them, searching for the pathway home.

When they find another network of wormhole jumpgates created by the Predecessors, Cam is sure they're on the right track. But there are…

14
Collateral Effects

Book cover of Collateral Effects
So close to home...
And yet farther away than ever.

Cam, Vicky and the others follow the jump gate line into the Reconstructor systems, hoping to find the Northwest Passage back to Earth...back home.

Instead, they find death and destruction. And an ancient mystery.

Something has wiped out one world…

15
Down Range

Book cover of Down Range

Cameron Alvarez is a Marine Drop Trooper and Marines are no stranger to sacrifice.

He was willing to sacrifice his life to protect the innocent, but what's he's been asked to give up now is far worse. Having subjected himself to the transformation virus, become linked to the power of…

16
Kill Chain

Book cover of Kill Chain
After years of wandering through the galactic wilderness, Cameron Alvarez is home.

But home isn't there anymore. While the Orion mission was gone, an alien virus brought the Commonwealth to its knees and killed billions. All that's left is a provisional government on an isolated colony and they need Cam's…