There are 8 books in the Net Force YA series. The newest book is Death Match which came out in 2003.

1
Virtual Vandals

By Tom Clancy , Steve Pieczenik,

Book cover of Virtual Vandals
Here comes a Clancy first: a new series of novels for young adults starring a team of troubleshooting teens--the Net Force Explorers--who know more about cutting edge technology than their teachers!
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3
End Game

Book cover of End Game
Net Force Explorer Megan O'Malley and her team face a dangerous enemy when a visit to Xanadu, the world's most exclusive resort and the scene of one of the most advanced virtual sites ever created, uncovers a deadly cyberthief. Original.

4
Safe House

Book cover of Safe House
In the year 2025 the Internet practically runs the world, and its virtual reality webwork has to be policed by Net Force to prevent computer-terrorists from sabotaging it. But sometimes they need help. Which is where the Net Force Explorers come in, the young people s auxiliary for computer whizz-kids…

5
Deathworld

Book cover of Deathworld
Charlie Davis is worried about his buddy, Rick. Rick's been hanging out in Deathworld - a punk virtual reality site - to get some space from his irritating parents. But the kids hanging out at Deathworld have been committing suicide in high numbers. When Charlie asks Explorer, Mark Gridley, to…

6
Runaways

Book cover of Runaways
Megan O'Malley's buddy, Burt Kamen, is having serious difficulties with his family. When Burt suddenly disappears, Megan is relieved to hear that he is at Breathing Space - a virtual 'refuge' run by a recognised charity that offers runaways a neutral space in which to talk with their families. But…

7
Own Goal

By Tom Clancy , Steve Pieczenik,

Book cover of Own Goal
Catie Murray loves playing soccer. Her little brother Hal prefers watching spatball - an exciting, rugby-style sport played between three teams in the gamesphere. His favourite team is The Banana Slugs from South Florida, amateur players who in 2025 are on a winning streak against big guys like Chicago, Japan…

8
Death Match

Book cover of Death Match
The latest, greatest, high-tech thrill ride for Tom Clancy's legion of young fans.

The amateurs are beating the pros in this year's spatball playoffs-and some big bettors plan to lose a fortune. When they threaten a star player, the Net Force Explorers are called in to protect America's newest pastime.