Built in Phoenix, Arizona

Cybersecurity competitions, fully hosted

Line Zero runs hands-on cyber ranges and live competitions 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 runs nothing.

Get a QuoteSee the Products

Products

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.

  • 27 challenges across all 4 PenTest+ domains
  • Linux, container, cloud-misconfiguration and AI-security targets
  • Every challenge mapped to an exam objective
Learn more

Defense

Pilot in development

BlueLine-CTF

CompTIA CySA+ (CS0-003)

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

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 everyone else's.

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

Who it's for

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 SkillsUSA, FBLA and CyberPatriot teams, and hosted regional events that go well beyond a single practice app.

Community Colleges

Course labs mapped to CompTIA certifications, plus club and team scrimmages and inter-college war games.

How it works

You teach. We run the range.

  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 a scoreboard login. No installs, no VMs.

  4. 03

    We tear it all down

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

Why Line Zero

Real labs, not slideware

Every student works in their own isolated environment, and every target is ours. Students never touch real systems.

1 Lab
Per student, fully isolated
0 Installs
Everything runs in the browser
6–8 hr
Lab days, billed per deployment
Local
Phoenix-based, on site for events

Pricing

Pay per deployment day

No per-seat monthly subscriptions. A lab day runs 6–8 hours, and you pay only for the days you use: a single competition day, or a pack of lab days spread across a semester.

  • Flat day rate, scaled to class size
  • Discounted multi-day lab packs
  • Regional and state contest hosting
  • Founding-school discount for early partners
Request a Quote

Planning a CTF day or competition season?

Founding schools get their first event at a discount.

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 on site or remote