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Cybersecurity competitions, fully hosted

Line Zero hosts hands-on cyber ranges and live competitions, built for high school CTE programs, student competition teams, and community colleges. Every student gets their own lab, every event gets a live scoreboard, and your school has nothing to install, host or maintain.

Based in Phoenix, Arizona.

Sample walkthrough: scan every port, spot the service nobody mentioned.

A real Redline-CTF challenge. Every range passes 34/34 health checks before students arrive.

Three lines, one platform

Learn to attack, learn to defend, then put both to the test against other teams.

Offense

Available now

Redline-CTF

CompTIA PenTest+ (PT0-003)

A capture-the-flag range for penetration-testing students. Each student gets a private Kali Linux desktop in the browser and a set of vulnerable targets to attack.

  • 42 challenges across all 5 PenTest+ (PT0-003) domains
  • Linux, container, cloud-misconfiguration and AI-security targets
  • Every challenge mapped to an exam objective
Sample walkthrough: test how a file server handles the paths it's given.
Learn more

Starting out? Redline-CTF Lite is the guided intro (in development).

Defense

In development

BlueLine-CTF

CompTIA CySA+ (CS0-004)

The analyst side of the house: triage SOC alerts, work through vulnerability-scan output, investigate a compromised host, and write it up.

  • Security operations and log triage
  • Vulnerability management and incident response
  • Reporting and communication challenges
Learn more

Starting out? BlueLine-CTF Lite is the guided intro (in development).

War game

Coming 2027

Zer0-Grounds

College level

A live cyber war game between teams: defend your own network, keep your services up, and find your way into the other teams' networks.

  • Team vs. team attack and defense
  • Uptime-based scoring with a live game master
  • Built for community colleges and university clubs

From first CTF to college war games

High School CTE Programs
Hands-on labs and in-class CTF days for IT and cybersecurity programs, with no lab to build or maintain.
Competition Teams
Practice ranges for teams preparing for SkillsUSA, FBLA and CyberPatriot, plus hosting for regional events of your own.
Community Colleges
Course labs mapped to CompTIA exam objectives and club or team scrimmages today, with inter-college war games coming in 2027.

You teach. We run the range.

Every student works in their own isolated lab, and every target is ours, built to be attacked. Students never touch anyone else's systems.

  1. 00

    Pick your dates

    Tell us your class size, product, and the days you want the range live.

  2. 01

    We deploy the day before

    Your range is stood up on AWS and health-checked before students arrive.

  3. 02

    Students log in from a browser

    Each student gets their own isolated lab and creates their own scoreboard login. Nothing to install, no local VMs.

  4. 03

    We tear it all down

    Results are exported for you, then the range is deleted. Nothing lingers between cohorts.

See what an event day looks like

Pay per deployment day, or save with a pack

No per-seat fees. Your own teacher proctors the event, and we build, run, remotely support and tear down the range. Every plan covers up to 35 students per deployment day, and a deployment day is 6–8 hours.

Single Day

$499

1 deployment day

One event, up to 35 students.

Semester Pack

$1,295

3 deployment days

Spread the days across the semester, up to 35 students each day.

School Year Plan

Best value

$1,700

up to 10 deployment days a year

Up to 35 students each day.

Included with every plan

  • A private range built for your booking: one isolated lab per student, browser-only (works on Chromebooks), and the range is deleted when your event ends
  • The scoreboard and challenge set
  • Teacher training videos covering the admin console and troubleshooting
  • Remote support from Line Zero during the event

Optional add-on

On-Site Proctor

A Line Zero host comes to your school and runs the event. Your teacher stays in the room; the host works alongside them.

Full day

$395

per day

Single class session

$195

per session, up to 2.5 hours

Founding School Program

The first 5 schools save 25% on any plan for their first 12 months. Offer ends June 30, 2027.

  • Hosting for regional or state contests you organize, quoted by headcount
  • Booked at least a week ahead
Book a Date

Pricing questions

Who supervises students?

Your school's teacher, always. The On-Site Proctor add-on brings a Line Zero host to run the event, but it doesn't replace the teacher.

What counts as a deployment day?

One event day of up to 6–8 hours for up to 35 students. We build the range for it and tear it down afterwards.

Can we pay by purchase order?

Contact us about purchase orders and vendor registration.

What happens to student data after the event?

The range and the lab computers are deleted after the event. For a single event, the scoreboard data is deleted too, once your teacher has downloaded the results. For a booking with several sessions, we keep one saved scoreboard copy between sessions and delete it 14 days after the final session, and no later than the booking's end date. Read our privacy notice.

Planning a CTF day or competition season?

The first 5 schools save 25% on any plan for their first 12 months. Offer ends June 30, 2027.

Get Started

Contact

Get In Touch

Tell us about your program, class size and dates, and we'll get back to you within one business day.

Mon–Fri, 8am–5pm MST. Event-day support is remote, and local in Arizona

What are you planning?

Optional. It helps us reply with a price for your dates.

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